20002000217 has 2 divisors, whose sum is σ = 20002000218. Its totient is φ = 20002000216.

The previous prime is 20002000181. The next prime is 20002000253. The reversal of 20002000217 is 71200020002.

It is a balanced prime because it is at equal distance from previous prime (20002000181) and next prime (20002000253).

It can be written as a sum of positive squares in only one way, i.e., 14878876441 + 5123123776 = 121979^2 + 71576^2 .

It is a cyclic number.

It is not a de Polignac number, because 20002000217 - 2⁶ = 20002000153 is a prime.

It is not a weakly prime, because it can be changed into another prime (20002000297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001000108 + 10001000109.

It is an arithmetic number, because the mean of its divisors is an integer number (10001000109).

Almost surely, 2^20002000217 is an apocalyptic number.

It is an amenable number.

20002000217 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002000217 is an equidigital number, since it uses as much as digits as its factorization.

20002000217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 14.

Adding to 20002000217 its reverse (71200020002), we get a palindrome (91202020219).

The spelling of 20002000217 in words is "twenty billion, two million, two hundred seventeen", and thus it is an aban number.