313340821169 has 2 divisors, whose sum is σ = 313340821170. Its totient is φ = 313340821168.

The previous prime is 313340821147. The next prime is 313340821193. The reversal of 313340821169 is 961128043313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262620376225 + 50720444944 = 512465^2 + 225212^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313340821169 is a prime.

It is a super-2 number, since 2×313340821169² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (313340821139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156670410584 + 156670410585.

It is an arithmetic number, because the mean of its divisors is an integer number (156670410585).

Almost surely, 2^313340821169 is an apocalyptic number.

It is an amenable number.

313340821169 is a deficient number, since it is larger than the sum of its proper divisors (1).

313340821169 is an equidigital number, since it uses as much as digits as its factorization.

313340821169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 313340821169 in words is "three hundred thirteen billion, three hundred forty million, eight hundred twenty-one thousand, one hundred sixty-nine".