111222324131142 has 128 divisors (see below), whose sum is σ = 268231197081600. Its totient is φ = 30034652256000.

The previous prime is 111222324131119. The next prime is 111222324131147. The reversal of 111222324131142 is 241131423222111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222324131147) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 602931642 + ... + 603116082.

It is an arithmetic number, because the mean of its divisors is an integer number (2095556227200).

Almost surely, 2^{111222324131142} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111222324131142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134115598540800).

111222324131142 is an abundant number, since it is smaller than the sum of its proper divisors (157008872950458).

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

111222324131142 is a wasteful number, since it uses less digits than its factorization.

111222324131142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186242.

The product of its digits is 4608, while the sum is 30.

Adding to 111222324131142 its reverse (241131423222111), we get a palindrome (352353747353253).

The spelling of 111222324131142 in words is "one hundred eleven trillion, two hundred twenty-two billion, three hundred twenty-four million, one hundred thirty-one thousand, one hundred forty-two".