31013122 has 16 divisors (see below), whose sum is σ = 54999360. Its totient is φ = 12832848.

The previous prime is 31013089. The next prime is 31013137. The reversal of 31013122 is 22131013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37788 + ... + 38599.

It is an arithmetic number, because the mean of its divisors is an integer number (3437460).

Almost surely, 2^31013122 is an apocalyptic number.

31013122 is a deficient number, since it is larger than the sum of its proper divisors (23986238).

31013122 is a wasteful number, since it uses less digits than its factorization.

31013122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76425.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 31013122 is about 5568.9426285427. The cubic root of 31013122 is about 314.1823828543.

Adding to 31013122 its reverse (22131013), we get a palindrome (53144135).

The spelling of 31013122 in words is "thirty-one million, thirteen thousand, one hundred twenty-two".