111723823879 has 16 divisors (see below), whose sum is σ = 115927096320. Its totient is φ = 107544314080.

The previous prime is 111723823873. The next prime is 111723823891. The reversal of 111723823879 is 978328327111.

It is a cyclic number.

It is not a de Polignac number, because 111723823879 - 2¹⁹ = 111723299591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111723823873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26083272 + ... + 26087554.

It is an arithmetic number, because the mean of its divisors is an integer number (7245443520).

Almost surely, 2^111723823879 is an apocalyptic number.

111723823879 is a deficient number, since it is larger than the sum of its proper divisors (4203272441).

111723823879 is a wasteful number, since it uses less digits than its factorization.

111723823879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6830.

The product of its digits is 1016064, while the sum is 52.

The spelling of 111723823879 in words is "one hundred eleven billion, seven hundred twenty-three million, eight hundred twenty-three thousand, eight hundred seventy-nine".