31123088 has 20 divisors (see below), whose sum is σ = 60643440. Its totient is φ = 15473184.

The previous prime is 31123069. The next prime is 31123093. The reversal of 31123088 is 88032113.

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, 2570 + ... + 8297.

It is an arithmetic number, because the mean of its divisors is an integer number (3032172).

Almost surely, 2^31123088 is an apocalyptic number.

It is an amenable number.

31123088 is a deficient number, since it is larger than the sum of its proper divisors (29520352).

31123088 is a wasteful number, since it uses less digits than its factorization.

31123088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11054 (or 11048 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 31123088 is about 5578.8070409363. The cubic root of 31123088 is about 314.5532863407.

The spelling of 31123088 in words is "thirty-one million, one hundred twenty-three thousand, eighty-eight".