111143214204 has 96 divisors (see below), whose sum is σ = 286500996096. Its totient is φ = 33253908480.

The previous prime is 111143214187. The next prime is 111143214229. The reversal of 111143214204 is 402412341111.

It is a happy number.

It is a congruent number.

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, 5534109 + ... + 5554155.

It is an arithmetic number, because the mean of its divisors is an integer number (2984385376).

Almost surely, 2^111143214204 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 111143214204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143250498048).

111143214204 is an abundant number, since it is smaller than the sum of its proper divisors (175357781892).

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

111143214204 is a wasteful number, since it uses less digits than its factorization.

111143214204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20595 (or 20593 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 111143214204 its reverse (402412341111), we get a palindrome (513555555315).

The spelling of 111143214204 in words is "one hundred eleven billion, one hundred forty-three million, two hundred fourteen thousand, two hundred four".