123300221309 has 2 divisors, whose sum is σ = 123300221310. Its totient is φ = 123300221308.

The previous prime is 123300221293. The next prime is 123300221323. The reversal of 123300221309 is 903122003321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117252826084 + 6047395225 = 342422^2 + 77765^2 .

It is a cyclic number.

It is not a de Polignac number, because 123300221309 - 2⁴ = 123300221293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123300221389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61650110654 + 61650110655.

It is an arithmetic number, because the mean of its divisors is an integer number (61650110655).

Almost surely, 2^123300221309 is an apocalyptic number.

It is an amenable number.

123300221309 is a deficient number, since it is larger than the sum of its proper divisors (1).

123300221309 is an equidigital number, since it uses as much as digits as its factorization.

123300221309 is an evil number, because the sum of its binary digits is even.

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

The spelling of 123300221309 in words is "one hundred twenty-three billion, three hundred million, two hundred twenty-one thousand, three hundred nine".