2312591129 has 2 divisors, whose sum is σ = 2312591130. Its totient is φ = 2312591128.

The previous prime is 2312591111. The next prime is 2312591147. The reversal of 2312591129 is 9211952132.

It is a balanced prime because it is at equal distance from previous prime (2312591111) and next prime (2312591147).

It can be written as a sum of positive squares in only one way, i.e., 2304480025 + 8111104 = 48005^2 + 2848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2312591129 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2312591179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156295564 + 1156295565.

It is an arithmetic number, because the mean of its divisors is an integer number (1156295565).

Almost surely, 2^2312591129 is an apocalyptic number.

It is an amenable number.

2312591129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2312591129 is an equidigital number, since it uses as much as digits as its factorization.

2312591129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 35.

The square root of 2312591129 is about 48089.4076590677. The cubic root of 2312591129 is about 1322.4104885202.

The spelling of 2312591129 in words is "two billion, three hundred twelve million, five hundred ninety-one thousand, one hundred twenty-nine".