1923/1/3: 010323 = 010:323 = each is palindrome
1923/1/5: 151923 = 15:19:23 = arthimetic series of increment 4
1923/1/12: 011223 = 01:12:23 = arthimetic series of increment 11
1923/1/15: 230115 = 230:115 = integer ratio of 2 to 1
1923/2/3: 020323 = 020:323 = each is palindrome
1923/2/3: 2323 = cyclic permutation symmetric
1923/2/3: 3223 = palindrome
1923/2/7: 192327 = 19:23:27 = arthimetic series of increment 4
1923/2/9: 9223 = 92:23 = integer ratio of 4 to 1
1923/3/1: 010323 = 010:323 = each is palindrome
1923/3/2: 020323 = 020:323 = each is palindrome
1923/3/2: 23032 = palindrome
1923/3/2: 2323 = cyclic permutation symmetric
1923/3/2: 2332 = palindrome
1923/3/2: 3223 = palindrome
1923/3/3: 030323 = 030:323 = each is palindrome
1923/3/4: 040323 = 040:323 = each is palindrome
1923/3/5: 050323 = 050:323 = each is palindrome
1923/3/6: 060323 = 060:323 = each is palindrome
1923/3/7: 070323 = 070:323 = each is palindrome
1923/3/8: 080323 = 080:323 = each is palindrome
1923/3/9: 090323 = 090:323 = each is palindrome
1923/3/13: 031323 = 03:13:23 = arthimetic series of increment 10
1923/3/20: 32023 = palindrome
1923/3/21: 32123 = palindrome
1923/3/22: 32223 = palindrome
1923/3/23: 32323 = palindrome
1923/3/24: 32423 = palindrome
1923/3/25: 32523 = palindrome
1923/3/26: 32623 = palindrome
1923/3/27: 32723 = palindrome
1923/3/28: 32823 = palindrome
1923/3/29: 3291923 = palindrome
1923/3/29: 32923 = palindrome
1923/4/3: 040323 = 040:323 = each is palindrome
1923/4/5: 2345 = 2:3:4:5 = arthimetic series of increment 1
1923/4/6: 2346 = 23:46 = integer ratio of 1 to 2
1923/4/6: 4623 = 46:23 = integer ratio of 2 to 1
1923/4/11: 041123 = 041:123 = integer ratio of 1 to 3
1923/5/1: 151923 = 15:19:23 = arthimetic series of increment 4
1923/5/3: 050323 = 050:323 = each is palindrome
1923/5/14: 051423 = 05:14:23 = arthimetic series of increment 9
1923/6/3: 060323 = 060:323 = each is palindrome
1923/6/4: 4623 = 46:23 = integer ratio of 2 to 1
1923/6/9: 2369 = 23:69 = integer ratio of 1 to 3
1923/6/9: 6923 = 69:23 = integer ratio of 3 to 1
1923/7/3: 070323 = 070:323 = each is palindrome
1923/7/15: 071523 = 07:15:23 = arthimetic series of increment 8
1923/7/19: 071923 = 071:923 = integer ratio of 1 to 13
1923/8/3: 080323 = 080:323 = each is palindrome
1923/8/4: 192384 = 192:384 = integer ratio of 1 to 2
1923/9/2: 2392 = 23:92 = integer ratio of 1 to 4
1923/9/2: 9223 = 92:23 = integer ratio of 4 to 1
1923/9/3: 090323 = 090:323 = each is palindrome
1923/9/6: 6923 = 69:23 = integer ratio of 3 to 1
1923/9/16: 091623 = 09:16:23 = arthimetic series of increment 7
1923/9/20: 092023 = 092:023 = integer ratio of 4 to 1
1923/9/20: 230920 = 230:920 = integer ratio of 1 to 4
1923/10/1: 231001 = 231:001 = integer ratio of 231 to 1
1923/10/3: 231003 = 231:003 = integer ratio of 77 to 1
1923/10/7: 231007 = 231:007 = integer ratio of 33 to 1
1923/10/11: 231011 = 231:011 = integer ratio of 21 to 1
1923/10/13: 101323 = 101:323 = each is palindrome
1923/10/16: 161023 = 161:023 = integer ratio of 7 to 1
1923/10/21: 231021 = 231:021 = integer ratio of 11 to 1
1923/11/4: 041123 = 041:123 = integer ratio of 1 to 3
1923/11/13: 111323 = 111:323 = each is palindrome
1923/11/15: 11151923 = 11:15:19:23 = arthimetic series of increment 4
1923/11/17: 111723 = 11:17:23 = arthimetic series of increment 6
1923/12/1: 011223 = 01:12:23 = arthimetic series of increment 11
1923/12/1: 231201 = 23:12:01 = arthimetic series of increment -11
1923/12/13: 121323 = 121:323 = each is palindrome
1923/12/31: 123123 = cyclic permutation symmetric
1923/12/31: 231231 = cyclic permutation symmetric