111124030243 has 4 divisors (see below), whose sum is σ = 113488371360. Its totient is φ = 108759689128.

The previous prime is 111124030187. The next prime is 111124030279. The reversal of 111124030243 is 342030421111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111124030243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111124030643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182170488 + ... + 1182170581.

It is an arithmetic number, because the mean of its divisors is an integer number (28372092840).

Almost surely, 2^111124030243 is an apocalyptic number.

111124030243 is a deficient number, since it is larger than the sum of its proper divisors (2364341117).

111124030243 is an equidigital number, since it uses as much as digits as its factorization.

111124030243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364341116.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 111124030243 its reverse (342030421111), we get a palindrome (453154451354).

The spelling of 111124030243 in words is "one hundred eleven billion, one hundred twenty-four million, thirty thousand, two hundred forty-three".