20102320003217 has 2 divisors, whose sum is σ = 20102320003218. Its totient is φ = 20102320003216.

The previous prime is 20102320003159. The next prime is 20102320003231. The reversal of 20102320003217 is 71230002320102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18507754660096 + 1594565343121 = 4302064^2 + 1262761^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102320003217 - 2⁶ = 20102320003153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20102320003192 and 20102320003201.

It is not a weakly prime, because it can be changed into another prime (20102320003237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051160001608 + 10051160001609.

It is an arithmetic number, because the mean of its divisors is an integer number (10051160001609).

Almost surely, 2^{20102320003217} is an apocalyptic number.

It is an amenable number.

20102320003217 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102320003217 is an equidigital number, since it uses as much as digits as its factorization.

20102320003217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 20102320003217 its reverse (71230002320102), we get a palindrome (91332322323319).

The spelling of 20102320003217 in words is "twenty trillion, one hundred two billion, three hundred twenty million, three thousand, two hundred seventeen".