12304735021 has 2 divisors, whose sum is σ = 12304735022. Its totient is φ = 12304735020.

The previous prime is 12304734973. The next prime is 12304735043. The reversal of 12304735021 is 12053740321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12295704996 + 9030025 = 110886^2 + 3005^2 .

It is a cyclic number.

It is not a de Polignac number, because 12304735021 - 2²⁵ = 12271180589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12304735081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6152367510 + 6152367511.

It is an arithmetic number, because the mean of its divisors is an integer number (6152367511).

Almost surely, 2^12304735021 is an apocalyptic number.

It is an amenable number.

12304735021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12304735021 is an equidigital number, since it uses as much as digits as its factorization.

12304735021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The spelling of 12304735021 in words is "twelve billion, three hundred four million, seven hundred thirty-five thousand, twenty-one".