120318389 has 2 divisors, whose sum is σ = 120318390. Its totient is φ = 120318388.

The previous prime is 120318383. The next prime is 120318437. The reversal of 120318389 is 983813021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66178225 + 54140164 = 8135^2 + 7358^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120318389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120318383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60159194 + 60159195.

It is an arithmetic number, because the mean of its divisors is an integer number (60159195).

Almost surely, 2^120318389 is an apocalyptic number.

It is an amenable number.

120318389 is a deficient number, since it is larger than the sum of its proper divisors (1).

120318389 is an equidigital number, since it uses as much as digits as its factorization.

120318389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 120318389 is about 10968.9739264892. The cubic root of 120318389 is about 493.6782600678.

The spelling of 120318389 in words is "one hundred twenty million, three hundred eighteen thousand, three hundred eighty-nine".