111103311204 has 96 divisors (see below), whose sum is σ = 300940093440. Its totient is φ = 35380550304.

The previous prime is 111103311173. The next prime is 111103311251. The reversal of 111103311204 is 402113301111.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2017159 + ... + 2071505.

It is an arithmetic number, because the mean of its divisors is an integer number (3134792640).

Almost surely, 2^111103311204 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 111103311204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150470046720).

111103311204 is an abundant number, since it is smaller than the sum of its proper divisors (189836782236).

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

111103311204 is a wasteful number, since it uses less digits than its factorization.

111103311204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55206 (or 55198 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111103311204 its reverse (402113301111), we get a palindrome (513216612315).

The spelling of 111103311204 in words is "one hundred eleven billion, one hundred three million, three hundred eleven thousand, two hundred four".