313121415163 has 2 divisors, whose sum is σ = 313121415164. Its totient is φ = 313121415162.

The previous prime is 313121415157. The next prime is 313121415227. The reversal of 313121415163 is 361514121313.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313121415163 is a prime.

It is not a weakly prime, because it can be changed into another prime (313121415263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156560707581 + 156560707582.

It is an arithmetic number, because the mean of its divisors is an integer number (156560707582).

Almost surely, 2^313121415163 is an apocalyptic number.

313121415163 is a deficient number, since it is larger than the sum of its proper divisors (1).

313121415163 is an equidigital number, since it uses as much as digits as its factorization.

313121415163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

Adding to 313121415163 its reverse (361514121313), we get a palindrome (674635536476).

The spelling of 313121415163 in words is "three hundred thirteen billion, one hundred twenty-one million, four hundred fifteen thousand, one hundred sixty-three".