111111112000191 has 64 divisors (see below), whose sum is σ = 160844003020800. Its totient is φ = 68059793894400.

The previous prime is 111111112000177. The next prime is 111111112000243. The reversal of 111111112000191 is 191000211111111.

It is not a de Polignac number, because 111111112000191 - 2¹⁸ = 111111111738047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111112000391) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 102277401 + ... + 103358061.

It is an arithmetic number, because the mean of its divisors is an integer number (2513187547200).

Almost surely, 2^{111111112000191} is an apocalyptic number.

111111112000191 is a deficient number, since it is larger than the sum of its proper divisors (49732891020609).

111111112000191 is a wasteful number, since it uses less digits than its factorization.

111111112000191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081360.

The product of its (nonzero) digits is 18, while the sum is 21.

The spelling of 111111112000191 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred twelve million, one hundred ninety-one", and thus it is an aban number.