1313112131 has 2 divisors, whose sum is σ = 1313112132. Its totient is φ = 1313112130.

The previous prime is 1313112109. The next prime is 1313112187. The reversal of 1313112131 is 1312113131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1313112131 - 2¹⁸ = 1312849987 is a prime.

It is a super-2 number, since 2×1313112131² = 3448526937158722322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1313112191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656556065 + 656556066.

It is an arithmetic number, because the mean of its divisors is an integer number (656556066).

Almost surely, 2^1313112131 is an apocalyptic number.

1313112131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313112131 is an equidigital number, since it uses as much as digits as its factorization.

1313112131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54, while the sum is 17.

The square root of 1313112131 is about 36236.8890910906. The cubic root of 1313112131 is about 1095.0499705447.

Adding to 1313112131 its reverse (1312113131), we get a palindrome (2625225262).

The spelling of 1313112131 in words is "one billion, three hundred thirteen million, one hundred twelve thousand, one hundred thirty-one".