1304304241991 has 2 divisors, whose sum is σ = 1304304241992. Its totient is φ = 1304304241990.

The previous prime is 1304304241957. The next prime is 1304304242039. The reversal of 1304304241991 is 1991424034031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1304304241991 - 2³⁰ = 1303230500167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1304304241291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652152120995 + 652152120996.

It is an arithmetic number, because the mean of its divisors is an integer number (652152120996).

Almost surely, 2^{1304304241991} is an apocalyptic number.

1304304241991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304304241991 is an equidigital number, since it uses as much as digits as its factorization.

1304304241991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 1304304241991 in words is "one trillion, three hundred four billion, three hundred four million, two hundred forty-one thousand, nine hundred ninety-one".