315650040313 has 4 divisors (see below), whose sum is σ = 316064824308. Its totient is φ = 315235256320.

The previous prime is 315650040281. The next prime is 315650040317. The reversal of 315650040313 is 313040056513.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21325345024 + 294324695289 = 146032^2 + 542517^2 .

It is a cyclic number.

It is not a de Polignac number, because 315650040313 - 2⁵ = 315650040281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315650040317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207390856 + ... + 207392377.

It is an arithmetic number, because the mean of its divisors is an integer number (79016206077).

Almost surely, 2^315650040313 is an apocalyptic number.

It is an amenable number.

315650040313 is a deficient number, since it is larger than the sum of its proper divisors (414783995).

315650040313 is an equidigital number, since it uses as much as digits as its factorization.

315650040313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414783994.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 315650040313 its product of nonzero digits (16200), we get a palindrome (315650056513).

Adding to 315650040313 its reverse (313040056513), we get a palindrome (628690096826).

The spelling of 315650040313 in words is "three hundred fifteen billion, six hundred fifty million, forty thousand, three hundred thirteen".