Your number, one digit away
One digit away
One change could reach Singular.
Your number
218,121
Exceptional · Top 1.36%
Position 3: 8 → 2 · +328 points.
Gained: ABAB pattern, Digit sum 9, Only two distinct digits, 2 distinct digits, Harshad number.
Lost: Digit sum 15, 3 distinct digits, Semiprime.
53 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.