Your number, one digit away
One digit away
One change could reach Extreme.
Your number
513,121
Exceptional · Top 4.43%
Position 3: 3 → 0 · +122 points.
Gained: Digit sum 10, Ascending segment, Prime, Happy number.
Lost: Digit sum 13, Zigzag digits, Semiprime.
53 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.