111423104 has 64 divisors (see below), whose sum is σ = 247401000. Its totient is φ = 49631232.

The previous prime is 111423089. The next prime is 111423113. The reversal of 111423104 is 401324111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 95101504 + 16321600 = 9752^2 + 4040^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47102 + ... + 49410.

Almost surely, 2^111423104 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 111423104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123700500).

111423104 is an abundant number, since it is smaller than the sum of its proper divisors (135977896).

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

111423104 is a wasteful number, since it uses less digits than its factorization.

111423104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365 (or 2353 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 111423104 is about 10555.7142818475. The cubic root of 111423104 is about 481.1994078710.

Adding to 111423104 its reverse (401324111), we get a palindrome (512747215).

The spelling of 111423104 in words is "one hundred eleven million, four hundred twenty-three thousand, one hundred four".