311320111112 has 32 divisors (see below), whose sum is σ = 599411002080. Its totient is φ = 151502762880.

The previous prime is 311320111111. The next prime is 311320111129. The reversal of 311320111112 is 211111023113.

It is not an unprimeable number, because it can be changed into a prime (311320111111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1501589 + ... + 1696292.

It is an arithmetic number, because the mean of its divisors is an integer number (18731593815).

Almost surely, 2^311320111112 is an apocalyptic number.

It is an amenable number.

311320111112 is a deficient number, since it is larger than the sum of its proper divisors (288090890968).

311320111112 is a wasteful number, since it uses less digits than its factorization.

311320111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3198213 (or 3198209 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 311320111112 its reverse (211111023113), we get a palindrome (522431134225).

The spelling of 311320111112 in words is "three hundred eleven billion, three hundred twenty million, one hundred eleven thousand, one hundred twelve".