111520542342 has 16 divisors (see below), whose sum is σ = 243317547072. Its totient is φ = 33794103720.

The previous prime is 111520542337. The next prime is 111520542373. The reversal of 111520542342 is 243245025111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 844852528 + ... + 844852659.

It is an arithmetic number, because the mean of its divisors is an integer number (15207346692).

Almost surely, 2^111520542342 is an apocalyptic number.

111520542342 is an abundant number, since it is smaller than the sum of its proper divisors (131797004730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111520542342 is a wasteful number, since it uses less digits than its factorization.

111520542342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689705203.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 111520542342 its reverse (243245025111), we get a palindrome (354765567453).

The spelling of 111520542342 in words is "one hundred eleven billion, five hundred twenty million, five hundred forty-two thousand, three hundred forty-two".