313012320018 has 8 divisors (see below), whose sum is σ = 626024640048. Its totient is φ = 104337440004.

The previous prime is 313012320017. The next prime is 313012320031. The reversal of 313012320018 is 810023210313.

It is a sphenic number, since it is the product of 3 distinct primes.

313012320018 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 313012320018.

It is not an unprimeable number, because it can be changed into a prime (313012320017) 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, 26084359996 + ... + 26084360007.

It is an arithmetic number, because the mean of its divisors is an integer number (78253080006).

Almost surely, 2^313012320018 is an apocalyptic number.

313012320018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313012320018 is a wasteful number, since it uses less digits than its factorization.

313012320018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52168720008.

The product of its (nonzero) digits is 864, while the sum is 24.

The spelling of 313012320018 in words is "three hundred thirteen billion, twelve million, three hundred twenty thousand, eighteen".