1310311129 has 2 divisors, whose sum is σ = 1310311130. Its totient is φ = 1310311128.

The previous prime is 1310311097. The next prime is 1310311139. The reversal of 1310311129 is 9211130131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 959760400 + 350550729 = 30980^2 + 18723^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310311129 - 2⁵ = 1310311097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1310311139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655155564 + 655155565.

It is an arithmetic number, because the mean of its divisors is an integer number (655155565).

Almost surely, 2^1310311129 is an apocalyptic number.

It is an amenable number.

1310311129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310311129 is an equidigital number, since it uses as much as digits as its factorization.

1310311129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 1310311129 is about 36198.2199700483. The cubic root of 1310311129 is about 1094.2707985346.

The spelling of 1310311129 in words is "one billion, three hundred ten million, three hundred eleven thousand, one hundred twenty-nine".