318031680012 has 24 divisors (see below), whose sum is σ = 766011789312. Its totient is φ = 102590864400.

The previous prime is 318031679993. The next prime is 318031680023. The reversal of 318031680012 is 210086130813.

It is a super-2 number, since 2×318031680012² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427461564 + ... + 427462307.

It is an arithmetic number, because the mean of its divisors is an integer number (31917157888).

Almost surely, 2^318031680012 is an apocalyptic number.

It is an amenable number.

318031680012 is an abundant number, since it is smaller than the sum of its proper divisors (447980109300).

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

318031680012 is a wasteful number, since it uses less digits than its factorization.

318031680012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854923909 (or 854923907 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 318031680012 in words is "three hundred eighteen billion, thirty-one million, six hundred eighty thousand, twelve".