120985773067729 has 2 divisors, whose sum is σ = 120985773067730. Its totient is φ = 120985773067728.

The previous prime is 120985773067711. The next prime is 120985773067739. The reversal of 120985773067729 is 927760377589021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103774459650625 + 17211313417104 = 10186975^2 + 4148652^2 .

It is an emirp because it is prime and its reverse (927760377589021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120985773067729 - 2²⁵ = 120985739513297 is a prime.

It is not a weakly prime, because it can be changed into another prime (120985773067739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60492886533864 + 60492886533865.

It is an arithmetic number, because the mean of its divisors is an integer number (60492886533865).

Almost surely, 2^{120985773067729} is an apocalyptic number.

It is an amenable number.

120985773067729 is a deficient number, since it is larger than the sum of its proper divisors (1).

120985773067729 is an equidigital number, since it uses as much as digits as its factorization.

120985773067729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560105280, while the sum is 73.

The spelling of 120985773067729 in words is "one hundred twenty trillion, nine hundred eighty-five billion, seven hundred seventy-three million, sixty-seven thousand, seven hundred twenty-nine".