12000001291 has 2 divisors, whose sum is σ = 12000001292. Its totient is φ = 12000001290.

The previous prime is 12000001249. The next prime is 12000001297. The reversal of 12000001291 is 19210000021.

12000001291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12000001291 - 2¹⁷ = 11999870219 is a prime.

It is not a weakly prime, because it can be changed into another prime (12000001297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000000645 + 6000000646.

It is an arithmetic number, because the mean of its divisors is an integer number (6000000646).

Almost surely, 2^12000001291 is an apocalyptic number.

12000001291 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000001291 is an equidigital number, since it uses as much as digits as its factorization.

12000001291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 12000001291 in words is "twelve billion, one thousand, two hundred ninety-one".