111143412042 has 16 divisors (see below), whose sum is σ = 239385810720. Its totient is φ = 34197972912.

The previous prime is 111143411969. The next prime is 111143412053. The reversal of 111143412042 is 240214341111.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712457692 + ... + 712457847.

It is an arithmetic number, because the mean of its divisors is an integer number (14961613170).

Almost surely, 2^111143412042 is an apocalyptic number.

111143412042 is an abundant number, since it is smaller than the sum of its proper divisors (128242398678).

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

111143412042 is a wasteful number, since it uses less digits than its factorization.

111143412042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424915557.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 111143412042 its reverse (240214341111), we get a palindrome (351357753153).

The spelling of 111143412042 in words is "one hundred eleven billion, one hundred forty-three million, four hundred twelve thousand, forty-two".