111100889124 has 81 divisors (see below), whose sum is σ = 285112814259. Its totient is φ = 36478321920.

The previous prime is 111100889113. The next prime is 111100889149. The reversal of 111100889124 is 421988001111.

The square root of 111100889124 is 333318.

It is a perfect power (a square), and thus also a powerful number.

111100889124 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 42440120100 + 68660769024 = 206010^2 + 262032^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 145992904 + ... + 145993664.

Almost surely, 2^111100889124 is an apocalyptic number.

111100889124 is the 333318-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111100889124

111100889124 is an abundant number, since it is smaller than the sum of its proper divisors (174011925135).

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

111100889124 is an frugal number, since it uses more digits than its factorization.

111100889124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678 (or 839 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 36.

Multiplying 111100889124 by its sum of digits (36), we get a square (3999632008464 = 1999908²).

111100889124 divided by its sum of digits (36) gives a square (3086135809 = 55553²).

The spelling of 111100889124 in words is "one hundred eleven billion, one hundred million, eight hundred eighty-nine thousand, one hundred twenty-four".