31142518312 has 32 divisors (see below), whose sum is σ = 59139460800. Its totient is φ = 15372273664.

The previous prime is 31142518301. The next prime is 31142518327. The reversal of 31142518312 is 21381524113.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 918933 + ... + 952219.

It is an arithmetic number, because the mean of its divisors is an integer number (1848108150).

Almost surely, 2^31142518312 is an apocalyptic number.

It is an amenable number.

31142518312 is a deficient number, since it is larger than the sum of its proper divisors (27996942488).

31142518312 is a wasteful number, since it uses less digits than its factorization.

31142518312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34785 (or 34781 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The spelling of 31142518312 in words is "thirty-one billion, one hundred forty-two million, five hundred eighteen thousand, three hundred twelve".