31198969316 has 24 divisors (see below), whose sum is σ = 54980427264. Its totient is φ = 15490627200.

The previous prime is 31198969309. The next prime is 31198969327. The reversal of 31198969316 is 61396989113.

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, 314081 + ... + 401303.

It is an arithmetic number, because the mean of its divisors is an integer number (2290851136).

Almost surely, 2^31198969316 is an apocalyptic number.

It is an amenable number.

31198969316 is a deficient number, since it is larger than the sum of its proper divisors (23781457948).

31198969316 is a wasteful number, since it uses less digits than its factorization.

31198969316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87851 (or 87849 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 56.

The spelling of 31198969316 in words is "thirty-one billion, one hundred ninety-eight million, nine hundred sixty-nine thousand, three hundred sixteen".