Your number, one digit away
One digit away
One change could reach Extreme.
Your number
21,239
Rare · Top 5.55%
Position 5: 9 → 1 · +105 points.
Gained: Digit sum 9, 3 distinct digits, Harshad number, Double pair, Happy number.
Lost: Digit sum 17, Semiprime, 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.