111109104 has 80 divisors (see below), whose sum is σ = 320336640. Its totient is φ = 36872640.

The previous prime is 111109051. The next prime is 111109111. The reversal of 111109104 is 401901111.

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

It is a congruent number.

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, 133939 + ... + 134765.

It is an arithmetic number, because the mean of its divisors is an integer number (4004208).

Almost surely, 2^111109104 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 111109104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160168320).

111109104 is an abundant number, since it is smaller than the sum of its proper divisors (209227536).

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

111109104 is a wasteful number, since it uses less digits than its factorization.

111109104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155 (or 1143 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The square root of 111109104 is about 10540.8303278252. The cubic root of 111109104 is about 480.7469619966.

The spelling of 111109104 in words is "one hundred eleven million, one hundred nine thousand, one hundred four".