111331351144 has 64 divisors (see below), whose sum is σ = 239569021440. Its totient is φ = 48103841280.

The previous prime is 111331351139. The next prime is 111331351151. The reversal of 111331351144 is 441153133111.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382717 + ... + 607564.

It is an arithmetic number, because the mean of its divisors is an integer number (3743265960).

Almost surely, 2^111331351144 is an apocalyptic number.

It is an amenable number.

111331351144 is an abundant number, since it is smaller than the sum of its proper divisors (128237670296).

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

111331351144 is a wasteful number, since it uses less digits than its factorization.

111331351144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990370 (or 990366 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

Adding to 111331351144 its reverse (441153133111), we get a palindrome (552484484255).

The spelling of 111331351144 in words is "one hundred eleven billion, three hundred thirty-one million, three hundred fifty-one thousand, one hundred forty-four".