12313131233113 has 4 divisors (see below), whose sum is σ = 12375634437540. Its totient is φ = 12250628028688.

The previous prime is 12313131233107. The next prime is 12313131233141. The reversal of 12313131233113 is 31133213131321.

It is a happy number.

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 10495345081104 + 1817786152009 = 3239652^2 + 1348253^2 .

It is a cyclic number.

It is not a de Polignac number, because 12313131233113 - 2⁹ = 12313131232601 is a prime.

It is a super-2 number, since 2×12313131233113² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12313131233213) 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, 31251601918 + ... + 31251602311.

It is an arithmetic number, because the mean of its divisors is an integer number (3093908609385).

Almost surely, 2^{12313131233113} is an apocalyptic number.

It is an amenable number.

12313131233113 is a deficient number, since it is larger than the sum of its proper divisors (62503204427).

12313131233113 is an equidigital number, since it uses as much as digits as its factorization.

12313131233113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62503204426.

The product of its digits is 2916, while the sum is 28.

Adding to 12313131233113 its reverse (31133213131321), we get a palindrome (43446344364434).

The spelling of 12313131233113 in words is "twelve trillion, three hundred thirteen billion, one hundred thirty-one million, two hundred thirty-three thousand, one hundred thirteen".