120238109 has 2 divisors, whose sum is σ = 120238110. Its totient is φ = 120238108.

The previous prime is 120238039. The next prime is 120238121. The reversal of 120238109 is 901832021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83210884 + 37027225 = 9122^2 + 6085^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120238109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120238169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60119054 + 60119055.

It is an arithmetic number, because the mean of its divisors is an integer number (60119055).

Almost surely, 2^120238109 is an apocalyptic number.

It is an amenable number.

120238109 is a deficient number, since it is larger than the sum of its proper divisors (1).

120238109 is an equidigital number, since it uses as much as digits as its factorization.

120238109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 120238109 is about 10965.3139033956. The cubic root of 120238109 is about 493.5684367095.

The spelling of 120238109 in words is "one hundred twenty million, two hundred thirty-eight thousand, one hundred nine".