17212089791231 has 2 divisors, whose sum is σ = 17212089791232. Its totient is φ = 17212089791230.

The previous prime is 17212089791227. The next prime is 17212089791249. The reversal of 17212089791231 is 13219798021271.

It is a weak prime.

It is an emirp because it is prime and its reverse (13219798021271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17212089791231 - 2² = 17212089791227 is a prime.

It is a super-2 number, since 2×17212089791231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17212089791251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8606044895615 + 8606044895616.

It is an arithmetic number, because the mean of its divisors is an integer number (8606044895616).

Almost surely, 2^{17212089791231} is an apocalyptic number.

17212089791231 is a deficient number, since it is larger than the sum of its proper divisors (1).

17212089791231 is an equidigital number, since it uses as much as digits as its factorization.

17212089791231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 53.

The spelling of 17212089791231 in words is "seventeen trillion, two hundred twelve billion, eighty-nine million, seven hundred ninety-one thousand, two hundred thirty-one".