31146864113 has 8 divisors (see below), whose sum is σ = 32229436800. Its totient is φ = 30064861008.

The previous prime is 31146864107. The next prime is 31146864157.

It is a happy number.

31146864113 is nontrivially palindromic in base 10.

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 31146864113 - 2⁴ = 31146864097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31146864013) 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, 29603 + ... + 251336.

It is an arithmetic number, because the mean of its divisors is an integer number (4028679600).

Almost surely, 2^31146864113 is an apocalyptic number.

It is an amenable number.

31146864113 is a deficient number, since it is larger than the sum of its proper divisors (1082572687).

31146864113 is a wasteful number, since it uses less digits than its factorization.

31146864113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284791.

The product of its digits is 41472, while the sum is 38.

The spelling of 31146864113 in words is "thirty-one billion, one hundred forty-six million, eight hundred sixty-four thousand, one hundred thirteen".