120784870548317 has 2 divisors, whose sum is σ = 120784870548318. Its totient is φ = 120784870548316.

The previous prime is 120784870548269. The next prime is 120784870548479. The reversal of 120784870548317 is 713845078487021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63333488398756 + 57451382149561 = 7958234^2 + 7579669^2 .

It is a cyclic number.

It is not a de Polignac number, because 120784870548317 - 2⁶ = 120784870548253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120684870548317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60392435274158 + 60392435274159.

It is an arithmetic number, because the mean of its divisors is an integer number (60392435274159).

Almost surely, 2^{120784870548317} is an apocalyptic number.

It is an amenable number.

120784870548317 is a deficient number, since it is larger than the sum of its proper divisors (1).

120784870548317 is an equidigital number, since it uses as much as digits as its factorization.

120784870548317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84295680, while the sum is 65.

The spelling of 120784870548317 in words is "one hundred twenty trillion, seven hundred eighty-four billion, eight hundred seventy million, five hundred forty-eight thousand, three hundred seventeen".