311311311112 has 32 divisors (see below), whose sum is σ = 618499339200. Its totient is φ = 146486664000.

The previous prime is 311311311107. The next prime is 311311311151. The reversal of 311311311112 is 211113113113.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 311311311112.

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, 6758839 + ... + 6804742.

It is an arithmetic number, because the mean of its divisors is an integer number (19328104350).

Almost surely, 2^311311311112 is an apocalyptic number.

It is an amenable number.

311311311112 is a deficient number, since it is larger than the sum of its proper divisors (307188028088).

311311311112 is a wasteful number, since it uses less digits than its factorization.

311311311112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13563757 (or 13563753 counting only the distinct ones).

The product of its digits is 54, while the sum is 19.

Adding to 311311311112 its reverse (211113113113), we get a palindrome (522424424225).

The spelling of 311311311112 in words is "three hundred eleven billion, three hundred eleven million, three hundred eleven thousand, one hundred twelve".