31013036 has 12 divisors (see below), whose sum is σ = 54401760. Its totient is φ = 15469680.

The previous prime is 31013023. The next prime is 31013041. The reversal of 31013036 is 63031013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7271 + ... + 10718.

It is an arithmetic number, because the mean of its divisors is an integer number (4533480).

Almost surely, 2^31013036 is an apocalyptic number.

It is an amenable number.

31013036 is a deficient number, since it is larger than the sum of its proper divisors (23388724).

31013036 is a wasteful number, since it uses less digits than its factorization.

31013036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18424 (or 18422 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 31013036 is about 5568.9349071434. The cubic root of 31013036 is about 314.1820924427.

Adding to 31013036 its reverse (63031013), we get a palindrome (94044049).

The spelling of 31013036 in words is "thirty-one million, thirteen thousand, thirty-six".