12111200011091 has 8 divisors (see below), whose sum is σ = 12283682846064. Its totient is φ = 11938894905600.

The previous prime is 12111200011039. The next prime is 12111200011103. The reversal of 12111200011091 is 19011000211121.

12111200011091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12111200011091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111200011991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44295110 + ... + 44567691.

It is an arithmetic number, because the mean of its divisors is an integer number (1535460355758).

Almost surely, 2^{12111200011091} is an apocalyptic number.

12111200011091 is a deficient number, since it is larger than the sum of its proper divisors (172482834973).

12111200011091 is an equidigital number, since it uses as much as digits as its factorization.

12111200011091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88864741.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 12111200011091 in words is "twelve trillion, one hundred eleven billion, two hundred million, eleven thousand, ninety-one".