111289759112 has 64 divisors (see below), whose sum is σ = 242562816000. Its totient is φ = 46883992896.

The previous prime is 111289759109. The next prime is 111289759151. The reversal of 111289759112 is 211957982111.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 948839 + ... + 1059657.

It is an arithmetic number, because the mean of its divisors is an integer number (3790044000).

Almost surely, 2^111289759112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111289759112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121281408000).

111289759112 is an abundant number, since it is smaller than the sum of its proper divisors (131273056888).

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

111289759112 is a wasteful number, since it uses less digits than its factorization.

111289759112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111138 (or 111134 counting only the distinct ones).

The product of its digits is 90720, while the sum is 47.

The spelling of 111289759112 in words is "one hundred eleven billion, two hundred eighty-nine million, seven hundred fifty-nine thousand, one hundred twelve".