17020040981 has 2 divisors, whose sum is σ = 17020040982. Its totient is φ = 17020040980.

The previous prime is 17020040969. The next prime is 17020041023. The reversal of 17020040981 is 18904002071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12225724900 + 4794316081 = 110570^2 + 69241^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17020040981 is a prime.

It is a super-3 number, since 3×17020040981³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17020040881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8510020490 + 8510020491.

It is an arithmetic number, because the mean of its divisors is an integer number (8510020491).

Almost surely, 2^17020040981 is an apocalyptic number.

It is an amenable number.

17020040981 is a deficient number, since it is larger than the sum of its proper divisors (1).

17020040981 is an equidigital number, since it uses as much as digits as its factorization.

17020040981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 32.

The spelling of 17020040981 in words is "seventeen billion, twenty million, forty thousand, nine hundred eighty-one".