111342243142 has 16 divisors (see below), whose sum is σ = 179947817280. Its totient is φ = 51363793152.

The previous prime is 111342243127. The next prime is 111342243161. The reversal of 111342243142 is 241342243111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 111342243142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 984267 + ... + 1091542.

It is an arithmetic number, because the mean of its divisors is an integer number (11246738580).

Almost surely, 2^111342243142 is an apocalyptic number.

111342243142 is a deficient number, since it is larger than the sum of its proper divisors (68605574138).

111342243142 is a wasteful number, since it uses less digits than its factorization.

111342243142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077887.

The product of its digits is 4608, while the sum is 28.

Adding to 111342243142 its reverse (241342243111), we get a palindrome (352684486253).

The spelling of 111342243142 in words is "one hundred eleven billion, three hundred forty-two million, two hundred forty-three thousand, one hundred forty-two".