111143124 has 24 divisors (see below), whose sum is σ = 288149120. Its totient is φ = 37047672.

The previous prime is 111143119. The next prime is 111143171. The reversal of 111143124 is 421341111.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 111143097 and 111143106.

It is a congruent number.

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, 514444 + ... + 514659.

Almost surely, 2^111143124 is an apocalyptic number.

It is an amenable number.

111143124 is an abundant number, since it is smaller than the sum of its proper divisors (177005996).

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

111143124 is a wasteful number, since it uses less digits than its factorization.

111143124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029116 (or 1029108 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 111143124 is about 10542.4439291845. The cubic root of 111143124 is about 480.7960229109.

Adding to 111143124 its reverse (421341111), we get a palindrome (532484235).

The spelling of 111143124 in words is "one hundred eleven million, one hundred forty-three thousand, one hundred twenty-four".