111424403 has 4 divisors (see below), whose sum is σ = 111924288. Its totient is φ = 110924520.

The previous prime is 111424393. The next prime is 111424433. The reversal of 111424403 is 304424111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111424403 - 2⁴ = 111424387 is a prime.

It is a Duffinian number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249608 + ... + 250053.

It is an arithmetic number, because the mean of its divisors is an integer number (27981072).

Almost surely, 2^111424403 is an apocalyptic number.

111424403 is a deficient number, since it is larger than the sum of its proper divisors (499885).

111424403 is an equidigital number, since it uses as much as digits as its factorization.

111424403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499884.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 111424403 is about 10555.7758123219. The cubic root of 111424403 is about 481.2012778471.

Adding to 111424403 its reverse (304424111), we get a palindrome (415848514).

The spelling of 111424403 in words is "one hundred eleven million, four hundred twenty-four thousand, four hundred three".