111769023138 has 16 divisors (see below), whose sum is σ = 225588855360. Its totient is φ = 36914539536.

The previous prime is 111769023137. The next prime is 111769023143. The reversal of 111769023138 is 831320967111.

It is a self number, because there is not a number n which added to its sum of digits gives 111769023138.

It is not an unprimeable number, because it can be changed into a prime (111769023131) by changing a digit.

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, 85449670 + ... + 85450977.

It is an arithmetic number, because the mean of its divisors is an integer number (14099303460).

Almost surely, 2^111769023138 is an apocalyptic number.

111769023138 is an abundant number, since it is smaller than the sum of its proper divisors (113819832222).

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

111769023138 is a wasteful number, since it uses less digits than its factorization.

111769023138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170900761.

The product of its (nonzero) digits is 54432, while the sum is 42.

The spelling of 111769023138 in words is "one hundred eleven billion, seven hundred sixty-nine million, twenty-three thousand, one hundred thirty-eight".