315305340334121 has 2 divisors, whose sum is σ = 315305340334122. Its totient is φ = 315305340334120.

The previous prime is 315305340334057. The next prime is 315305340334151. The reversal of 315305340334121 is 121433043503513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 279517905626521 + 35787434707600 = 16718789^2 + 5982260^2 .

It is a cyclic number.

It is not a de Polignac number, because 315305340334121 - 2⁶ = 315305340334057 is a prime.

It is a super-2 number, since 2×315305340334121² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (315305340334151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157652670167060 + 157652670167061.

It is an arithmetic number, because the mean of its divisors is an integer number (157652670167061).

Almost surely, 2^{315305340334121} is an apocalyptic number.

It is an amenable number.

315305340334121 is a deficient number, since it is larger than the sum of its proper divisors (1).

315305340334121 is an equidigital number, since it uses as much as digits as its factorization.

315305340334121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 38.

Adding to 315305340334121 its reverse (121433043503513), we get a palindrome (436738383837634).

The spelling of 315305340334121 in words is "three hundred fifteen trillion, three hundred five billion, three hundred forty million, three hundred thirty-four thousand, one hundred twenty-one".