2312321129 has 2 divisors, whose sum is σ = 2312321130. Its totient is φ = 2312321128.

The previous prime is 2312321117. The next prime is 2312321159. The reversal of 2312321129 is 9211232132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1342123225 + 970197904 = 36635^2 + 31148^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2312321129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2312321098 and 2312321107.

It is not a weakly prime, because it can be changed into another prime (2312321159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156160564 + 1156160565.

It is an arithmetic number, because the mean of its divisors is an integer number (1156160565).

Almost surely, 2^2312321129 is an apocalyptic number.

It is an amenable number.

2312321129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2312321129 is an equidigital number, since it uses as much as digits as its factorization.

2312321129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 26.

The square root of 2312321129 is about 48086.6003061144. The cubic root of 2312321129 is about 1322.3590217586.

The spelling of 2312321129 in words is "two billion, three hundred twelve million, three hundred twenty-one thousand, one hundred twenty-nine".