211193841242017 has 2 divisors, whose sum is σ = 211193841242018. Its totient is φ = 211193841242016.

The previous prime is 211193841241991. The next prime is 211193841242047. The reversal of 211193841242017 is 710242148391112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135169549547536 + 76024291694481 = 11626244^2 + 8719191^2 .

It is a cyclic number.

It is not a de Polignac number, because 211193841242017 - 2¹⁹ = 211193840717729 is a prime.

It is not a weakly prime, because it can be changed into another prime (211193841242047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105596920621008 + 105596920621009.

It is an arithmetic number, because the mean of its divisors is an integer number (105596920621009).

Almost surely, 2^{211193841242017} is an apocalyptic number.

It is an amenable number.

211193841242017 is a deficient number, since it is larger than the sum of its proper divisors (1).

211193841242017 is an equidigital number, since it uses as much as digits as its factorization.

211193841242017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 211193841242017 in words is "two hundred eleven trillion, one hundred ninety-three billion, eight hundred forty-one million, two hundred forty-two thousand, seventeen".