318880068313 has 4 divisors (see below), whose sum is σ = 318943811088. Its totient is φ = 318816325540.

The previous prime is 318880068307. The next prime is 318880068317. The reversal of 318880068313 is 313860088813.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-318880068313 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318880068317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31863883 + ... + 31873888.

It is an arithmetic number, because the mean of its divisors is an integer number (79735952772).

Almost surely, 2^318880068313 is an apocalyptic number.

It is an amenable number.

318880068313 is a deficient number, since it is larger than the sum of its proper divisors (63742775).

318880068313 is an equidigital number, since it uses as much as digits as its factorization.

318880068313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63742774.

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 318880068313 in words is "three hundred eighteen billion, eight hundred eighty million, sixty-eight thousand, three hundred thirteen".