313879905431 has 2 divisors, whose sum is σ = 313879905432. Its totient is φ = 313879905430.

The previous prime is 313879905421. The next prime is 313879905457. The reversal of 313879905431 is 134509978313.

It is a weak prime.

It is an emirp because it is prime and its reverse (134509978313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313879905431 - 2¹⁰ = 313879904407 is a prime.

It is a super-2 number, since 2×313879905431² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313879905421) 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, 156939952715 + 156939952716.

It is an arithmetic number, because the mean of its divisors is an integer number (156939952716).

Almost surely, 2^313879905431 is an apocalyptic number.

313879905431 is a deficient number, since it is larger than the sum of its proper divisors (1).

313879905431 is an equidigital number, since it uses as much as digits as its factorization.

313879905431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The spelling of 313879905431 in words is "three hundred thirteen billion, eight hundred seventy-nine million, nine hundred five thousand, four hundred thirty-one".