331130232 has 48 divisors (see below), whose sum is σ = 900102840. Its totient is φ = 109971648.

The previous prime is 331130221. The next prime is 331130249. The reversal of 331130232 is 232031133.

331130232 is a `hidden beast` number, since 331 + 1 + 302 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11643 + ... + 28245.

Almost surely, 2^331130232 is an apocalyptic number.

It is an amenable number.

331130232 is an abundant number, since it is smaller than the sum of its proper divisors (568972608).

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

331130232 is a wasteful number, since it uses less digits than its factorization.

331130232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16892 (or 16885 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 331130232 is about 18196.9841457314. The cubic root of 331130232 is about 691.8303514542.

Adding to 331130232 its reverse (232031133), we get a palindrome (563161365).

Subtracting from 331130232 its reverse (232031133), we obtain a palindrome (99099099).

The spelling of 331130232 in words is "three hundred thirty-one million, one hundred thirty thousand, two hundred thirty-two".