17200838021 has 2 divisors, whose sum is σ = 17200838022. Its totient is φ = 17200838020.

The previous prime is 17200838003. The next prime is 17200838023. The reversal of 17200838021 is 12083800271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15646507396 + 1554330625 = 125086^2 + 39425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17200838021 is a prime.

Together with 17200838023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17200838023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8600419010 + 8600419011.

It is an arithmetic number, because the mean of its divisors is an integer number (8600419011).

Almost surely, 2^17200838021 is an apocalyptic number.

It is an amenable number.

17200838021 is a deficient number, since it is larger than the sum of its proper divisors (1).

17200838021 is an equidigital number, since it uses as much as digits as its factorization.

17200838021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 17200838021 in words is "seventeen billion, two hundred million, eight hundred thirty-eight thousand, twenty-one".