12340302991 has 2 divisors, whose sum is σ = 12340302992. Its totient is φ = 12340302990.

The previous prime is 12340302929. The next prime is 12340303037. The reversal of 12340302991 is 19920304321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12340302991 - 2²¹ = 12338205839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12340302901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6170151495 + 6170151496.

It is an arithmetic number, because the mean of its divisors is an integer number (6170151496).

Almost surely, 2^12340302991 is an apocalyptic number.

12340302991 is a deficient number, since it is larger than the sum of its proper divisors (1).

12340302991 is an equidigital number, since it uses as much as digits as its factorization.

12340302991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 12340302991 in words is "twelve billion, three hundred forty million, three hundred two thousand, nine hundred ninety-one".