12886031231191 has 4 divisors (see below), whose sum is σ = 12886063566192. Its totient is φ = 12885998896192.

The previous prime is 12886031231071. The next prime is 12886031231207. The reversal of 12886031231191 is 19113213068821.

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

It is a cyclic number.

It is not a de Polignac number, because 12886031231191 - 2⁷ = 12886031231063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12886031231791) 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, 15562171 + ... + 16369276.

It is an arithmetic number, because the mean of its divisors is an integer number (3221515891548).

Almost surely, 2^{12886031231191} is an apocalyptic number.

12886031231191 is a deficient number, since it is larger than the sum of its proper divisors (32335001).

12886031231191 is an equidigital number, since it uses as much as digits as its factorization.

12886031231191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32335000.

The product of its (nonzero) digits is 124416, while the sum is 46.

The spelling of 12886031231191 in words is "twelve trillion, eight hundred eighty-six billion, thirty-one million, two hundred thirty-one thousand, one hundred ninety-one".