111232142111 has 32 divisors (see below), whose sum is σ = 124840647360. Its totient is φ = 98487760896.

The previous prime is 111232142101. The next prime is 111232142113. The reversal of 111232142111 is 111241232111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111232142111 - 2³⁴ = 94052272927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111232142113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41549705 + ... + 41552381.

It is an arithmetic number, because the mean of its divisors is an integer number (3901270230).

Almost surely, 2^111232142111 is an apocalyptic number.

111232142111 is a deficient number, since it is larger than the sum of its proper divisors (13608505249).

111232142111 is a wasteful number, since it uses less digits than its factorization.

111232142111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563.

The product of its digits is 96, while the sum is 20.

Adding to 111232142111 its reverse (111241232111), we get a palindrome (222473374222).

The spelling of 111232142111 in words is "one hundred eleven billion, two hundred thirty-two million, one hundred forty-two thousand, one hundred eleven".