Your number, one digit away
One digit away
One change could reach Singular.
Your number
21,019
Exceptional · Top 2.11%
Position 5: 9 → 2 · +322 points.
Gained: Digit sum 6, Palindrome, Ascending segment, 3 distinct digits, Harshad number, Double pair, Alternating parity, Happy number.
Lost: Digit sum 13, Prime, 4 distinct digits, Repeated digit.
44 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.