20000000210117 has 2 divisors, whose sum is σ = 20000000210118. Its totient is φ = 20000000210116.

The previous prime is 20000000210089. The next prime is 20000000210147. The reversal of 20000000210117 is 71101200000002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12226169600836 + 7773830609281 = 3496594^2 + 2788159^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000000210117 - 2²⁸ = 19999731774661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20000000210147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000000105058 + 10000000105059.

It is an arithmetic number, because the mean of its divisors is an integer number (10000000105059).

Almost surely, 2^{20000000210117} is an apocalyptic number.

It is an amenable number.

20000000210117 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000000210117 is an equidigital number, since it uses as much as digits as its factorization.

20000000210117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 14.

Adding to 20000000210117 its reverse (71101200000002), we get a palindrome (91101200210119).

The spelling of 20000000210117 in words is "twenty trillion, two hundred ten thousand, one hundred seventeen".