313340400491 has 2 divisors, whose sum is σ = 313340400492. Its totient is φ = 313340400490.

The previous prime is 313340400421. The next prime is 313340400547. The reversal of 313340400491 is 194004043313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313340400491 - 2¹⁸ = 313340138347 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (313340400421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156670200245 + 156670200246.

It is an arithmetic number, because the mean of its divisors is an integer number (156670200246).

Almost surely, 2^313340400491 is an apocalyptic number.

313340400491 is a deficient number, since it is larger than the sum of its proper divisors (1).

313340400491 is an equidigital number, since it uses as much as digits as its factorization.

313340400491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 313340400491 in words is "three hundred thirteen billion, three hundred forty million, four hundred thousand, four hundred ninety-one".