Your number, one digit away
One digit away
One change could reach Extreme.
Your number
21,240
Distinct · Top 16.3%
Position 4: 4 → 1 · +235 points.
Gained: Digit sum 6, Descending segment, 3 distinct digits, Alternating parity, Double pair, Happy number.
Lost: Digit sum 9, 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.