31161119056 has 40 divisors (see below), whose sum is σ = 60762182400. Its totient is φ = 15480702720.

The previous prime is 31161119039. The next prime is 31161119123. The reversal of 31161119056 is 65091116113.

It is a happy number.

It is a super-2 number, since 2×31161119056² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 4117516 + ... + 4125076.

It is an arithmetic number, because the mean of its divisors is an integer number (1519054560).

Almost surely, 2^31161119056 is an apocalyptic number.

It is an amenable number.

31161119056 is a deficient number, since it is larger than the sum of its proper divisors (29601063344).

31161119056 is a wasteful number, since it uses less digits than its factorization.

31161119056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9187 (or 9181 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 34.

The spelling of 31161119056 in words is "thirty-one billion, one hundred sixty-one million, one hundred nineteen thousand, fifty-six".