111534110142 has 128 divisors (see below), whose sum is σ = 284396313600. Its totient is φ = 28362894336.

The previous prime is 111534110111. The next prime is 111534110159. The reversal of 111534110142 is 241011435111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12805353 + ... + 12814059.

It is an arithmetic number, because the mean of its divisors is an integer number (2221846200).

Almost surely, 2^111534110142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111534110142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142198156800).

111534110142 is an abundant number, since it is smaller than the sum of its proper divisors (172862203458).

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

111534110142 is a wasteful number, since it uses less digits than its factorization.

111534110142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9570.

The product of its (nonzero) digits is 480, while the sum is 24.

Adding to 111534110142 its reverse (241011435111), we get a palindrome (352545545253).

The spelling of 111534110142 in words is "one hundred eleven billion, five hundred thirty-four million, one hundred ten thousand, one hundred forty-two".