111120204 has 72 divisors (see below), whose sum is σ = 283357200. Its totient is φ = 33875712.

The previous prime is 111120203. The next prime is 111120221. The reversal of 111120204 is 402021111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 111120204.

It is not an unprimeable number, because it can be changed into a prime (111120203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 318222 + ... + 318570.

Almost surely, 2^111120204 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 111120204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141678600).

111120204 is an abundant number, since it is smaller than the sum of its proper divisors (172236996).

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

111120204 is a wasteful number, since it uses less digits than its factorization.

111120204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 111120204 is about 10541.3568386617. The cubic root of 111120204 is about 480.7629706265.

Adding to 111120204 its reverse (402021111), we get a palindrome (513141315).

The spelling of 111120204 in words is "one hundred eleven million, one hundred twenty thousand, two hundred four".