200403218317 has 2 divisors, whose sum is σ = 200403218318. Its totient is φ = 200403218316.

The previous prime is 200403218297. The next prime is 200403218339. The reversal of 200403218317 is 713812304002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114613394116 + 85789824201 = 338546^2 + 292899^2 .

It is a cyclic number.

It is not a de Polignac number, because 200403218317 - 2³⁵ = 166043479949 is a prime.

It is a super-2 number, since 2×200403218317² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200403218017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100201609158 + 100201609159.

It is an arithmetic number, because the mean of its divisors is an integer number (100201609159).

Almost surely, 2^200403218317 is an apocalyptic number.

It is an amenable number.

200403218317 is a deficient number, since it is larger than the sum of its proper divisors (1).

200403218317 is an equidigital number, since it uses as much as digits as its factorization.

200403218317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 200403218317 in words is "two hundred billion, four hundred three million, two hundred eighteen thousand, three hundred seventeen".