111381372131142 has 8 divisors (see below), whose sum is σ = 222762744262296. Its totient is φ = 37127124043712.

The previous prime is 111381372131123. The next prime is 111381372131171. The reversal of 111381372131142 is 241131273183111.

It is a sphenic number, since it is the product of 3 distinct primes.

111381372131142 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 111381372131142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9281781010923 + ... + 9281781010934.

It is an arithmetic number, because the mean of its divisors is an integer number (27845343032787).

Almost surely, 2^{111381372131142} is an apocalyptic number.

111381372131142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

111381372131142 is a wasteful number, since it uses less digits than its factorization.

111381372131142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18563562021862.

The product of its digits is 24192, while the sum is 39.

The spelling of 111381372131142 in words is "one hundred eleven trillion, three hundred eighty-one billion, three hundred seventy-two million, one hundred thirty-one thousand, one hundred forty-two".