31120132 has 48 divisors (see below), whose sum is σ = 61205760. Its totient is φ = 13773312.

The previous prime is 31120121. The next prime is 31120153. The reversal of 31120132 is 23102113.

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 15 ways as a sum of consecutive naturals, for example, 84613 + ... + 84979.

It is an arithmetic number, because the mean of its divisors is an integer number (1275120).

Almost surely, 2^31120132 is an apocalyptic number.

It is an amenable number.

31120132 is a deficient number, since it is larger than the sum of its proper divisors (30085628).

31120132 is a wasteful number, since it uses less digits than its factorization.

31120132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 458 counting only the distinct ones).

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

The square root of 31120132 is about 5578.5421034532. The cubic root of 31120132 is about 314.5433275072.

Adding to 31120132 its reverse (23102113), we get a palindrome (54222245).

The spelling of 31120132 in words is "thirty-one million, one hundred twenty thousand, one hundred thirty-two".