631002890232 has 128 divisors (see below), whose sum is σ = 2059216992000. Its totient is φ = 176504296320.

The previous prime is 631002890213. The next prime is 631002890251. The reversal of 631002890232 is 232098200136.

631002890232 is a `hidden beast` number, since 6 + 310 + 0 + 28 + 90 + 232 = 666.

It is an interprime number because it is at equal distance from previous prime (631002890213) and next prime (631002890251).

It is a super-2 number, since 2×631002890232² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10183482 + ... + 10245257.

It is an arithmetic number, because the mean of its divisors is an integer number (16087632750).

Almost surely, 2^631002890232 is an apocalyptic number.

It is an amenable number.

631002890232 is an abundant number, since it is smaller than the sum of its proper divisors (1428214101768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

631002890232 is a wasteful number, since it uses less digits than its factorization.

631002890232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20428778 (or 20428768 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 631002890232 in words is "six hundred thirty-one billion, two million, eight hundred ninety thousand, two hundred thirty-two".