315151881313 has 2 divisors, whose sum is σ = 315151881314. Its totient is φ = 315151881312.

The previous prime is 315151881301. The next prime is 315151881323. The reversal of 315151881313 is 313188151513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314953296849 + 198584464 = 561207^2 + 14092^2 .

It is a cyclic number.

It is not a de Polignac number, because 315151881313 - 2¹⁷ = 315151750241 is a prime.

It is not a weakly prime, because it can be changed into another prime (315151881323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157575940656 + 157575940657.

It is an arithmetic number, because the mean of its divisors is an integer number (157575940657).

Almost surely, 2^315151881313 is an apocalyptic number.

It is an amenable number.

315151881313 is a deficient number, since it is larger than the sum of its proper divisors (1).

315151881313 is an equidigital number, since it uses as much as digits as its factorization.

315151881313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 40.

The spelling of 315151881313 in words is "three hundred fifteen billion, one hundred fifty-one million, eight hundred eighty-one thousand, three hundred thirteen".