111424120 has 32 divisors (see below), whose sum is σ = 265453200. Its totient is φ = 41947648.

The previous prime is 111424067. The next prime is 111424123. The reversal of 111424120 is 21424111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111424094 and 111424103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111424123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81250 + ... + 82609.

Almost surely, 2^111424120 is an apocalyptic number.

111424120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111424120 is an abundant number, since it is smaller than the sum of its proper divisors (154029080).

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

111424120 is a wasteful number, since it uses less digits than its factorization.

111424120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163887 (or 163883 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 111424120 is about 10555.7624073299. The cubic root of 111424120 is about 481.2008704555.

Adding to 111424120 its reverse (21424111), we get a palindrome (132848231).

Subtracting from 111424120 its reverse (21424111), we obtain a palindrome (90000009).

The spelling of 111424120 in words is "one hundred eleven million, four hundred twenty-four thousand, one hundred twenty".