120508539709 has 2 divisors, whose sum is σ = 120508539710. Its totient is φ = 120508539708.

The previous prime is 120508539703. The next prime is 120508539773. The reversal of 120508539709 is 907935805021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108369348025 + 12139191684 = 329195^2 + 110178^2 .

It is a cyclic number.

It is not a de Polignac number, because 120508539709 - 2¹¹ = 120508537661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120508539703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60254269854 + 60254269855.

It is an arithmetic number, because the mean of its divisors is an integer number (60254269855).

Almost surely, 2^120508539709 is an apocalyptic number.

It is an amenable number.

120508539709 is a deficient number, since it is larger than the sum of its proper divisors (1).

120508539709 is an equidigital number, since it uses as much as digits as its factorization.

120508539709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 680400, while the sum is 49.

The spelling of 120508539709 in words is "one hundred twenty billion, five hundred eight million, five hundred thirty-nine thousand, seven hundred nine".