304018373921 has 2 divisors, whose sum is σ = 304018373922. Its totient is φ = 304018373920.

The previous prime is 304018373891. The next prime is 304018373999. The reversal of 304018373921 is 129373810403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167366901025 + 136651472896 = 409105^2 + 369664^2 .

It is an emirp because it is prime and its reverse (129373810403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 304018373921 - 2¹⁴ = 304018357537 is a prime.

It is not a weakly prime, because it can be changed into another prime (304018373221) 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, 152009186960 + 152009186961.

It is an arithmetic number, because the mean of its divisors is an integer number (152009186961).

Almost surely, 2^304018373921 is an apocalyptic number.

It is an amenable number.

304018373921 is a deficient number, since it is larger than the sum of its proper divisors (1).

304018373921 is an equidigital number, since it uses as much as digits as its factorization.

304018373921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 304018373921 in words is "three hundred four billion, eighteen million, three hundred seventy-three thousand, nine hundred twenty-one".