Your number, one digit away

One digit away

One change could reach Extreme.

Position 4: 1 → 2 · +102 points.

Gained: Perfect square, Descending segment, Digit sum 19.

Lost: Highly divisible, Digit sum 18, Harshad number.

53 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.