12040304291 has 2 divisors, whose sum is σ = 12040304292. Its totient is φ = 12040304290.

The previous prime is 12040304279. The next prime is 12040304317. The reversal of 12040304291 is 19240304021.

It is an a-pointer prime, because the next prime (12040304317) can be obtained adding 12040304291 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12040304291 - 2¹⁴ = 12040287907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12040304291.

It is not a weakly prime, because it can be changed into another prime (12040304251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6020152145 + 6020152146.

It is an arithmetic number, because the mean of its divisors is an integer number (6020152146).

Almost surely, 2^12040304291 is an apocalyptic number.

12040304291 is a deficient number, since it is larger than the sum of its proper divisors (1).

12040304291 is an equidigital number, since it uses as much as digits as its factorization.

12040304291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 12040304291 in words is "twelve billion, forty million, three hundred four thousand, two hundred ninety-one".