12000111020191 has 4 divisors (see below), whose sum is σ = 13714412594512. Its totient is φ = 10285809445872.

The previous prime is 12000111020179. The next prime is 12000111020251. The reversal of 12000111020191 is 19102011100021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12000111020191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000111020791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857150787150 + ... + 857150787163.

It is an arithmetic number, because the mean of its divisors is an integer number (3428603148628).

Almost surely, 2^{12000111020191} is an apocalyptic number.

12000111020191 is a deficient number, since it is larger than the sum of its proper divisors (1714301574321).

12000111020191 is an equidigital number, since it uses as much as digits as its factorization.

12000111020191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714301574320.

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 12000111020191 in words is "twelve trillion, one hundred eleven million, twenty thousand, one hundred ninety-one".