31013132 has 12 divisors (see below), whose sum is σ = 55163136. Its totient is φ = 15252240.

The previous prime is 31013089. The next prime is 31013137. The reversal of 31013132 is 23131013.

It is not an unprimeable number, because it can be changed into a prime (31013137) 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, 63308 + ... + 63795.

It is an arithmetic number, because the mean of its divisors is an integer number (4596928).

Almost surely, 2^31013132 is an apocalyptic number.

It is an amenable number.

31013132 is a deficient number, since it is larger than the sum of its proper divisors (24150004).

31013132 is a wasteful number, since it uses less digits than its factorization.

31013132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127168 (or 127166 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 31013132 is about 5568.9435263791. The cubic root of 31013132 is about 314.1824166231.

Adding to 31013132 its reverse (23131013), we get a palindrome (54144145).

The spelling of 31013132 in words is "thirty-one million, thirteen thousand, one hundred thirty-two".