31123033124 has 48 divisors (see below), whose sum is σ = 56747792640. Its totient is φ = 14923228320.

The previous prime is 31123033103. The next prime is 31123033147. The reversal of 31123033124 is 42133032113.

It is a self number, because there is not a number n which added to its sum of digits gives 31123033124.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11394839 + ... + 11397569.

It is an arithmetic number, because the mean of its divisors is an integer number (1182245680).

Almost surely, 2^31123033124 is an apocalyptic number.

It is an amenable number.

31123033124 is a deficient number, since it is larger than the sum of its proper divisors (25624759516).

31123033124 is a wasteful number, since it uses less digits than its factorization.

31123033124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3960 (or 3958 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31123033124 its reverse (42133032113), we get a palindrome (73256065237).

The spelling of 31123033124 in words is "thirty-one billion, one hundred twenty-three million, thirty-three thousand, one hundred twenty-four".