12021300230309 has 2 divisors, whose sum is σ = 12021300230310. Its totient is φ = 12021300230308.

The previous prime is 12021300230279. The next prime is 12021300230311. The reversal of 12021300230309 is 90303200312021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11518916966209 + 502383264100 = 3393953^2 + 708790^2 .

It is a cyclic number.

It is not a de Polignac number, because 12021300230309 - 2⁸ = 12021300230053 is a prime.

Together with 12021300230311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021300230209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010650115154 + 6010650115155.

It is an arithmetic number, because the mean of its divisors is an integer number (6010650115155).

Almost surely, 2^{12021300230309} is an apocalyptic number.

It is an amenable number.

12021300230309 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021300230309 is an equidigital number, since it uses as much as digits as its factorization.

12021300230309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 12021300230309 in words is "twelve trillion, twenty-one billion, three hundred million, two hundred thirty thousand, three hundred nine".