111520542422 has 4 divisors (see below), whose sum is σ = 167280813636. Its totient is φ = 55760271210.

The previous prime is 111520542401. The next prime is 111520542431. The reversal of 111520542422 is 224245025111.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27880135604 + ... + 27880135607.

It is an arithmetic number, because the mean of its divisors is an integer number (41820203409).

Almost surely, 2^111520542422 is an apocalyptic number.

111520542422 is a deficient number, since it is larger than the sum of its proper divisors (55760271214).

111520542422 is an equidigital number, since it uses as much as digits as its factorization.

111520542422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55760271213.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 111520542422 its reverse (224245025111), we get a palindrome (335765567533).

The spelling of 111520542422 in words is "one hundred eleven billion, five hundred twenty million, five hundred forty-two thousand, four hundred twenty-two".