20001202322317 has 2 divisors, whose sum is σ = 20001202322318. Its totient is φ = 20001202322316.

The previous prime is 20001202322201. The next prime is 20001202322327. The reversal of 20001202322317 is 71322320210002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18503599099561 + 1497603222756 = 4301581^2 + 1223766^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001202322317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20001202322291 and 20001202322300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20001202322327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000601161158 + 10000601161159.

It is an arithmetic number, because the mean of its divisors is an integer number (10000601161159).

Almost surely, 2^{20001202322317} is an apocalyptic number.

It is an amenable number.

20001202322317 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001202322317 is an equidigital number, since it uses as much as digits as its factorization.

20001202322317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 20001202322317 its reverse (71322320210002), we get a palindrome (91323522532319).

The spelling of 20001202322317 in words is "twenty trillion, one billion, two hundred two million, three hundred twenty-two thousand, three hundred seventeen".