31201313132 has 36 divisors (see below), whose sum is σ = 61953476928. Its totient is φ = 13724911200.

The previous prime is 31201313123. The next prime is 31201313141. The reversal of 31201313132 is 23131310213.

It is an interprime number because it is at equal distance from previous prime (31201313123) and next prime (31201313141).

It is a super-2 number, since 2×31201313132² (a number of 22 digits) contains 22 as substring.

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, 1024763 + ... + 1054770.

Almost surely, 2^31201313132 is an apocalyptic number.

It is an amenable number.

31201313132 is a deficient number, since it is larger than the sum of its proper divisors (30752163796).

31201313132 is a wasteful number, since it uses less digits than its factorization.

31201313132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079590 (or 2079577 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31201313132 its reverse (23131310213), we get a palindrome (54332623345).

The spelling of 31201313132 in words is "thirty-one billion, two hundred one million, three hundred thirteen thousand, one hundred thirty-two".