31002130232 has 16 divisors (see below), whose sum is σ = 58154203800. Its totient is φ = 15494342560.

The previous prime is 31002130231. The next prime is 31002130241. The reversal of 31002130232 is 23203120013.

It is a super-2 number, since 2×31002130232² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31002130232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31002130231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 820694 + ... + 857637.

Almost surely, 2^31002130232 is an apocalyptic number.

It is an amenable number.

31002130232 is a deficient number, since it is larger than the sum of its proper divisors (27152073568).

31002130232 is a wasteful number, since it uses less digits than its factorization.

31002130232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680646 (or 1680642 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31002130232 its reverse (23203120013), we get a palindrome (54205250245).

The spelling of 31002130232 in words is "thirty-one billion, two million, one hundred thirty thousand, two hundred thirty-two".