311800012 has 12 divisors (see below), whose sum is σ = 548665936. Its totient is φ = 155038320.

The previous prime is 311800003. The next prime is 311800031. The reversal of 311800012 is 210008113.

311800012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 214608 + ... + 216055.

Almost surely, 2^311800012 is an apocalyptic number.

It is an amenable number.

311800012 is a deficient number, since it is larger than the sum of its proper divisors (236865924).

311800012 is a wasteful number, since it uses less digits than its factorization.

311800012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430848 (or 430846 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 311800012 is about 17657.8597797128. The cubic root of 311800012 is about 678.0973427584.

Adding to 311800012 its reverse (210008113), we get a palindrome (521808125).

The spelling of 311800012 in words is "three hundred eleven million, eight hundred thousand, twelve".