12000019000091 has 2 divisors, whose sum is σ = 12000019000092. Its totient is φ = 12000019000090.

The previous prime is 12000018999989. The next prime is 12000019000093. The reversal of 12000019000091 is 19000091000021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12000019000091 is a prime.

Together with 12000019000093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12000019000093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000009500045 + 6000009500046.

It is an arithmetic number, because the mean of its divisors is an integer number (6000009500046).

Almost surely, 2^{12000019000091} is an apocalyptic number.

12000019000091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000019000091 is an equidigital number, since it uses as much as digits as its factorization.

12000019000091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 23.

The spelling of 12000019000091 in words is "twelve trillion, nineteen million, ninety-one", and thus it is an aban number and an uban number.