331313315 has 4 divisors (see below), whose sum is σ = 397575984. Its totient is φ = 265050648.

The previous prime is 331313303. The next prime is 331313351. The reversal of 331313315 is 513313133.

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

It is a cyclic number.

It is not a de Polignac number, because 331313315 - 2⁴ = 331313299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33131327 + ... + 33131336.

It is an arithmetic number, because the mean of its divisors is an integer number (99393996).

Almost surely, 2^331313315 is an apocalyptic number.

331313315 is a deficient number, since it is larger than the sum of its proper divisors (66262669).

331313315 is an equidigital number, since it uses as much as digits as its factorization.

331313315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66262668.

The product of its digits is 1215, while the sum is 23.

The square root of 331313315 is about 18202.0140369136. The cubic root of 331313315 is about 691.9578330583.

Adding to 331313315 its reverse (513313133), we get a palindrome (844626448).

The spelling of 331313315 in words is "three hundred thirty-one million, three hundred thirteen thousand, three hundred fifteen".