120120002309 has 2 divisors, whose sum is σ = 120120002310. Its totient is φ = 120120002308.

The previous prime is 120120002291. The next prime is 120120002323. The reversal of 120120002309 is 903200021021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110456522500 + 9663479809 = 332350^2 + 98303^2 .

It is a cyclic number.

It is not a de Polignac number, because 120120002309 - 2²⁴ = 120103225093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120120002389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060001154 + 60060001155.

It is an arithmetic number, because the mean of its divisors is an integer number (60060001155).

Almost surely, 2^120120002309 is an apocalyptic number.

It is an amenable number.

120120002309 is a deficient number, since it is larger than the sum of its proper divisors (1).

120120002309 is an equidigital number, since it uses as much as digits as its factorization.

120120002309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 120120002309 in words is "one hundred twenty billion, one hundred twenty million, two thousand, three hundred nine".