Your number, one digit away

One digit away

One change could reach Extreme.

Position 3: 7 → 2 · +111 points.

Gained: Binary palindrome, Digit sum 16, Zigzag digits, Semiprime, 4 distinct digits, Repeated digit.

Lost: Triangular number, Digit sum 21, 5 distinct digits, Happy number.

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