17120317009 has 2 divisors, whose sum is σ = 17120317010. Its totient is φ = 17120317008.

The previous prime is 17120317003. The next prime is 17120317013. The reversal of 17120317009 is 90071302171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11885360400 + 5234956609 = 109020^2 + 72353^2 .

It is a cyclic number.

It is not a de Polignac number, because 17120317009 - 2⁷ = 17120316881 is a prime.

It is not a weakly prime, because it can be changed into another prime (17120317003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8560158504 + 8560158505.

It is an arithmetic number, because the mean of its divisors is an integer number (8560158505).

Almost surely, 2^17120317009 is an apocalyptic number.

It is an amenable number.

17120317009 is a deficient number, since it is larger than the sum of its proper divisors (1).

17120317009 is an equidigital number, since it uses as much as digits as its factorization.

17120317009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646, while the sum is 31.

The spelling of 17120317009 in words is "seventeen billion, one hundred twenty million, three hundred seventeen thousand, nine".