313001031131 has 4 divisors (see below), whose sum is σ = 320635202664. Its totient is φ = 305366859600.

The previous prime is 313001031073. The next prime is 313001031179. The reversal of 313001031131 is 131130100313.

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

It is a cyclic number.

It is not a de Polignac number, because 313001031131 - 2²² = 312996836827 is a prime.

It is a super-2 number, since 2×313001031131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313001031331) 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, 3817085705 + ... + 3817085786.

It is an arithmetic number, because the mean of its divisors is an integer number (80158800666).

Almost surely, 2^313001031131 is an apocalyptic number.

313001031131 is a deficient number, since it is larger than the sum of its proper divisors (7634171533).

313001031131 is an equidigital number, since it uses as much as digits as its factorization.

313001031131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7634171532.

The product of its (nonzero) digits is 81, while the sum is 17.

Adding to 313001031131 its reverse (131130100313), we get a palindrome (444131131444).

The spelling of 313001031131 in words is "three hundred thirteen billion, one million, thirty-one thousand, one hundred thirty-one".