313421123129 has 2 divisors, whose sum is σ = 313421123130. Its totient is φ = 313421123128.

The previous prime is 313421123089. The next prime is 313421123143. The reversal of 313421123129 is 921321124313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311533655104 + 1887468025 = 558152^2 + 43445^2 .

It is a cyclic number.

It is not a de Polignac number, because 313421123129 - 2⁸ = 313421122873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313421123095 and 313421123104.

It is not a weakly prime, because it can be changed into another prime (313421123159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156710561564 + 156710561565.

It is an arithmetic number, because the mean of its divisors is an integer number (156710561565).

Almost surely, 2^313421123129 is an apocalyptic number.

It is an amenable number.

313421123129 is a deficient number, since it is larger than the sum of its proper divisors (1).

313421123129 is an equidigital number, since it uses as much as digits as its factorization.

313421123129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 32.

The spelling of 313421123129 in words is "three hundred thirteen billion, four hundred twenty-one million, one hundred twenty-three thousand, one hundred twenty-nine".