315401113 has 2 divisors, whose sum is σ = 315401114. Its totient is φ = 315401112.

The previous prime is 315401111. The next prime is 315401117. The reversal of 315401113 is 311104513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210482064 + 104919049 = 14508^2 + 10243^2 .

It is a cyclic number.

It is not a de Polignac number, because 315401113 - 2¹ = 315401111 is a prime.

Together with 315401111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (315401111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157700556 + 157700557.

It is an arithmetic number, because the mean of its divisors is an integer number (157700557).

Almost surely, 2^315401113 is an apocalyptic number.

It is an amenable number.

315401113 is a deficient number, since it is larger than the sum of its proper divisors (1).

315401113 is an equidigital number, since it uses as much as digits as its factorization.

315401113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 315401113 is about 17759.5358328983. The cubic root of 315401113 is about 680.6978943662.

Adding to 315401113 its reverse (311104513), we get a palindrome (626505626).

The spelling of 315401113 in words is "three hundred fifteen million, four hundred one thousand, one hundred thirteen".