111424104 has 96 divisors (see below), whose sum is σ = 331063200. Its totient is φ = 33575040.

The previous prime is 111424067. The next prime is 111424123. The reversal of 111424104 is 401424111.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212787 + ... + 213309.

It is an arithmetic number, because the mean of its divisors is an integer number (3448575).

Almost surely, 2^111424104 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 111424104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165531600).

111424104 is an abundant number, since it is smaller than the sum of its proper divisors (219639096).

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

111424104 is a wasteful number, since it uses less digits than its factorization.

111424104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815 (or 808 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 111424104 is about 10555.7616494500. The cubic root of 111424104 is about 481.2008474228.

Adding to 111424104 its reverse (401424111), we get a palindrome (512848215).

The spelling of 111424104 in words is "one hundred eleven million, four hundred twenty-four thousand, one hundred four".