311330123112 has 32 divisors (see below), whose sum is σ = 778351132800. Its totient is φ = 103773264384.

The previous prime is 311330123099. The next prime is 311330123177. The reversal of 311330123112 is 211321033113.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583713 + ... + 981519.

It is an arithmetic number, because the mean of its divisors is an integer number (24323472900).

Almost surely, 2^311330123112 is an apocalyptic number.

It is an amenable number.

311330123112 is an abundant number, since it is smaller than the sum of its proper divisors (467021009688).

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

311330123112 is a wasteful number, since it uses less digits than its factorization.

311330123112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430425 (or 430421 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 311330123112 its reverse (211321033113), we get a palindrome (522651156225).

The spelling of 311330123112 in words is "three hundred eleven billion, three hundred thirty million, one hundred twenty-three thousand, one hundred twelve".