31116271016 has 32 divisors (see below), whose sum is σ = 59799168000. Its totient is φ = 15173980416.

The previous prime is 31116271007. The next prime is 31116271019. The reversal of 31116271016 is 61017261113.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31116271016.

It is not an unprimeable number, because it can be changed into a prime (31116271019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199601 + ... + 319488.

It is an arithmetic number, because the mean of its divisors is an integer number (1868724000).

Almost surely, 2^31116271016 is an apocalyptic number.

It is an amenable number.

31116271016 is a deficient number, since it is larger than the sum of its proper divisors (28682896984).

31116271016 is a wasteful number, since it uses less digits than its factorization.

31116271016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519281 (or 519277 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 29.

The spelling of 31116271016 in words is "thirty-one billion, one hundred sixteen million, two hundred seventy-one thousand, sixteen".