111424443 has 32 divisors (see below), whose sum is σ = 176795136. Its totient is φ = 61721088.

The previous prime is 111424433. The next prime is 111424459. The reversal of 111424443 is 344424111.

It is not a de Polignac number, because 111424443 - 2¹⁸ = 111162299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111424433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11596 + ... + 18902.

It is an arithmetic number, because the mean of its divisors is an integer number (5524848).

Almost surely, 2^111424443 is an apocalyptic number.

111424443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111424443 is a deficient number, since it is larger than the sum of its proper divisors (65370693).

111424443 is a wasteful number, since it uses less digits than its factorization.

111424443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7363.

The product of its digits is 1536, while the sum is 24.

The square root of 111424443 is about 10555.7777070190. Note that the first 4 decimals coincide. The cubic root of 111424443 is about 481.2013354288.

Adding to 111424443 its reverse (344424111), we get a palindrome (455848554).

The spelling of 111424443 in words is "one hundred eleven million, four hundred twenty-four thousand, four hundred forty-three".