313110213131 has 2 divisors, whose sum is σ = 313110213132. Its totient is φ = 313110213130.

The previous prime is 313110213107. The next prime is 313110213149. The reversal of 313110213131 is 131312011313.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313110213131 is a prime.

It is a super-2 number, since 2×313110213131² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (313110213151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156555106565 + 156555106566.

It is an arithmetic number, because the mean of its divisors is an integer number (156555106566).

Almost surely, 2^313110213131 is an apocalyptic number.

313110213131 is a deficient number, since it is larger than the sum of its proper divisors (1).

313110213131 is an equidigital number, since it uses as much as digits as its factorization.

313110213131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 313110213131 its reverse (131312011313), we get a palindrome (444422224444).

The spelling of 313110213131 in words is "three hundred thirteen billion, one hundred ten million, two hundred thirteen thousand, one hundred thirty-one".