120243002421209 has 2 divisors, whose sum is σ = 120243002421210. Its totient is φ = 120243002421208.

The previous prime is 120243002421097. The next prime is 120243002421247. The reversal of 120243002421209 is 902124200342021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83301161540809 + 36941840880400 = 9126947^2 + 6077980^2 .

It is a cyclic number.

It is not a de Polignac number, because 120243002421209 - 2¹⁶ = 120243002355673 is a prime.

It is not a weakly prime, because it can be changed into another prime (120243002421709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60121501210604 + 60121501210605.

It is an arithmetic number, because the mean of its divisors is an integer number (60121501210605).

Almost surely, 2^{120243002421209} is an apocalyptic number.

It is an amenable number.

120243002421209 is a deficient number, since it is larger than the sum of its proper divisors (1).

120243002421209 is an equidigital number, since it uses as much as digits as its factorization.

120243002421209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 120243002421209 in words is "one hundred twenty trillion, two hundred forty-three billion, two million, four hundred twenty-one thousand, two hundred nine".