17120112281 has 2 divisors, whose sum is σ = 17120112282. Its totient is φ = 17120112280.

The previous prime is 17120112253. The next prime is 17120112299. The reversal of 17120112281 is 18221102171.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16023509056 + 1096603225 = 126584^2 + 33115^2 .

It is an emirp because it is prime and its reverse (18221102171) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17120112281 - 2¹⁰ = 17120111257 is a prime.

It is a super-3 number, since 3×17120112281³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 17120112281.

It is not a weakly prime, because it can be changed into another prime (17120102281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8560056140 + 8560056141.

It is an arithmetic number, because the mean of its divisors is an integer number (8560056141).

Almost surely, 2^17120112281 is an apocalyptic number.

It is an amenable number.

17120112281 is a deficient number, since it is larger than the sum of its proper divisors (1).

17120112281 is an equidigital number, since it uses as much as digits as its factorization.

17120112281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 26.

The spelling of 17120112281 in words is "seventeen billion, one hundred twenty million, one hundred twelve thousand, two hundred eighty-one".