311200012 has 24 divisors (see below), whose sum is σ = 576601200. Its totient is φ = 146552256.

The previous prime is 311200003. The next prime is 311200027. The reversal of 311200012 is 210002113.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1314 + ... + 24982.

It is an arithmetic number, because the mean of its divisors is an integer number (24025050).

Almost surely, 2^311200012 is an apocalyptic number.

It is an amenable number.

311200012 is a deficient number, since it is larger than the sum of its proper divisors (265401188).

311200012 is a wasteful number, since it uses less digits than its factorization.

311200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23865 (or 23863 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 311200012 is about 17640.8619970794. The cubic root of 311200012 is about 677.6621068772.

Adding to 311200012 its reverse (210002113), we get a palindrome (521202125).

The spelling of 311200012 in words is "three hundred eleven million, two hundred thousand, twelve".