31146264113 has 4 divisors (see below), whose sum is σ = 31226332020. Its totient is φ = 31066196208.

The previous prime is 31146264059. The next prime is 31146264143.

It is a happy number.

31146264113 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15092613904 + 16053650209 = 122852^2 + 126703^2 .

It is a cyclic number.

It is not a de Polignac number, because 31146264113 - 2⁸ = 31146263857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31146264113.

It is not an unprimeable number, because it can be changed into a prime (31146264143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40033370 + ... + 40034147.

It is an arithmetic number, because the mean of its divisors is an integer number (7806583005).

Almost surely, 2^31146264113 is an apocalyptic number.

It is an amenable number.

31146264113 is a deficient number, since it is larger than the sum of its proper divisors (80067907).

31146264113 is an equidigital number, since it uses as much as digits as its factorization.

31146264113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80067906.

The product of its digits is 10368, while the sum is 32.

The spelling of 31146264113 in words is "thirty-one billion, one hundred forty-six million, two hundred sixty-four thousand, one hundred thirteen".