31656660113 has 8 divisors (see below), whose sum is σ = 34295932608. Its totient is φ = 29046551184.

The previous prime is 31656660103. The next prime is 31656660169. The reversal of 31656660113 is 31106665613.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31656660113 - 2¹⁴ = 31656643729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31656660103) 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, 7288631 + ... + 7292972.

It is an arithmetic number, because the mean of its divisors is an integer number (4286991576).

Almost surely, 2^31656660113 is an apocalyptic number.

It is an amenable number.

31656660113 is a deficient number, since it is larger than the sum of its proper divisors (2639272495).

31656660113 is a wasteful number, since it uses less digits than its factorization.

31656660113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14581783.

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 31656660113 in words is "thirty-one billion, six hundred fifty-six million, six hundred sixty thousand, one hundred thirteen".