3111220031112 has 48 divisors (see below), whose sum is σ = 8434793053440. Its totient is φ = 1036018311648.

The previous prime is 3111220031093. The next prime is 3111220031137. The reversal of 3111220031112 is 2111300221113.

3111220031112 is a `hidden beast` number, since 31 + 112 + 200 + 311 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21908568 + ... + 22050119.

It is an arithmetic number, because the mean of its divisors is an integer number (175724855280).

Almost surely, 2^{3111220031112} is an apocalyptic number.

It is an amenable number.

3111220031112 is an abundant number, since it is smaller than the sum of its proper divisors (5323573022328).

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

3111220031112 is a wasteful number, since it uses less digits than its factorization.

3111220031112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43959682 (or 43959675 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 3111220031112 its reverse (2111300221113), we get a palindrome (5222520252225).

The spelling of 3111220031112 in words is "three trillion, one hundred eleven billion, two hundred twenty million, thirty-one thousand, one hundred twelve".