120242002409 has 2 divisors, whose sum is σ = 120242002410. Its totient is φ = 120242002408.

The previous prime is 120242002369. The next prime is 120242002429. The reversal of 120242002409 is 904200242021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119546520025 + 695482384 = 345755^2 + 26372^2 .

It is an emirp because it is prime and its reverse (904200242021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120242002409 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (120242002429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60121001204 + 60121001205.

It is an arithmetic number, because the mean of its divisors is an integer number (60121001205).

Almost surely, 2^120242002409 is an apocalyptic number.

It is an amenable number.

120242002409 is a deficient number, since it is larger than the sum of its proper divisors (1).

120242002409 is an equidigital number, since it uses as much as digits as its factorization.

120242002409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 120242002409 in words is "one hundred twenty billion, two hundred forty-two million, two thousand, four hundred nine".