120443009 has 2 divisors, whose sum is σ = 120443010. Its totient is φ = 120443008.

The previous prime is 120442997. The next prime is 120443017. The reversal of 120443009 is 900344021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90193009 + 30250000 = 9497^2 + 5500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120443009 is a prime.

It is not a weakly prime, because it can be changed into another prime (120473009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60221504 + 60221505.

It is an arithmetic number, because the mean of its divisors is an integer number (60221505).

Almost surely, 2^120443009 is an apocalyptic number.

It is an amenable number.

120443009 is a deficient number, since it is larger than the sum of its proper divisors (1).

120443009 is an equidigital number, since it uses as much as digits as its factorization.

120443009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 120443009 is about 10974.6530241279. The cubic root of 120443009 is about 493.8486439881.

The spelling of 120443009 in words is "one hundred twenty million, four hundred forty-three thousand, nine".