111424243 has 8 divisors (see below), whose sum is σ = 128010240. Its totient is φ = 95005320.

The previous prime is 111424241. The next prime is 111424249. The reversal of 111424243 is 342424111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111424243 - 2¹ = 111424241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111424241) 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, 40333 + ... + 43006.

It is an arithmetic number, because the mean of its divisors is an integer number (16001280).

Almost surely, 2^111424243 is an apocalyptic number.

111424243 is a deficient number, since it is larger than the sum of its proper divisors (16585997).

111424243 is an equidigital number, since it uses as much as digits as its factorization.

111424243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83537.

The product of its digits is 768, while the sum is 22.

The square root of 111424243 is about 10555.7682335299. The cubic root of 111424243 is about 481.2010475198.

Adding to 111424243 its reverse (342424111), we get a palindrome (453848354).

The spelling of 111424243 in words is "one hundred eleven million, four hundred twenty-four thousand, two hundred forty-three".