12301321309 has 2 divisors, whose sum is σ = 12301321310. Its totient is φ = 12301321308.

The previous prime is 12301321301. The next prime is 12301321343. The reversal of 12301321309 is 90312310321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12146244100 + 155077209 = 110210^2 + 12453^2 .

It is a cyclic number.

It is not a de Polignac number, because 12301321309 - 2³ = 12301321301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12301321301) 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, 6150660654 + 6150660655.

It is an arithmetic number, because the mean of its divisors is an integer number (6150660655).

Almost surely, 2^12301321309 is an apocalyptic number.

It is an amenable number.

12301321309 is a deficient number, since it is larger than the sum of its proper divisors (1).

12301321309 is an equidigital number, since it uses as much as digits as its factorization.

12301321309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

The spelling of 12301321309 in words is "twelve billion, three hundred one million, three hundred twenty-one thousand, three hundred nine".