311162111112 has 32 divisors (see below), whose sum is σ = 780775793280. Its totient is φ = 103337968320.

The previous prime is 311162111111. The next prime is 311162111147. The reversal of 311162111112 is 211111261113.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (311162111111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23914323 + ... + 23927330.

It is an arithmetic number, because the mean of its divisors is an integer number (24399243540).

Almost surely, 2^311162111112 is an apocalyptic number.

It is an amenable number.

311162111112 is an abundant number, since it is smaller than the sum of its proper divisors (469613682168).

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

311162111112 is a wasteful number, since it uses less digits than its factorization.

311162111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47841933 (or 47841929 counting only the distinct ones).

The product of its digits is 72, while the sum is 21.

Adding to 311162111112 its reverse (211111261113), we get a palindrome (522273372225).

The spelling of 311162111112 in words is "three hundred eleven billion, one hundred sixty-two million, one hundred eleven thousand, one hundred twelve".