304034240021 has 2 divisors, whose sum is σ = 304034240022. Its totient is φ = 304034240020.

The previous prime is 304034240011. The next prime is 304034240063. The reversal of 304034240021 is 120042430403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199595391121 + 104438848900 = 446761^2 + 323170^2 .

It is a cyclic number.

It is not a de Polignac number, because 304034240021 - 2²⁶ = 303967131157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304034240011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152017120010 + 152017120011.

It is an arithmetic number, because the mean of its divisors is an integer number (152017120011).

Almost surely, 2^304034240021 is an apocalyptic number.

It is an amenable number.

304034240021 is a deficient number, since it is larger than the sum of its proper divisors (1).

304034240021 is an equidigital number, since it uses as much as digits as its factorization.

304034240021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 304034240021 its reverse (120042430403), we get a palindrome (424076670424).

The spelling of 304034240021 in words is "three hundred four billion, thirty-four million, two hundred forty thousand, twenty-one".