20300317 has 2 divisors, whose sum is σ = 20300318. Its totient is φ = 20300316.

The previous prime is 20300299. The next prime is 20300323. The reversal of 20300317 is 71300302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13980121 + 6320196 = 3739^2 + 2514^2 .

It is a cyclic number.

It is not a de Polignac number, because 20300317 - 2²³ = 11911709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20300317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20300327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150158 + 10150159.

It is an arithmetic number, because the mean of its divisors is an integer number (10150159).

Almost surely, 2^20300317 is an apocalyptic number.

It is an amenable number.

20300317 is a deficient number, since it is larger than the sum of its proper divisors (1).

20300317 is an equidigital number, since it uses as much as digits as its factorization.

20300317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 20300317 is about 4505.5873091085. The cubic root of 20300317 is about 272.7936603604.

Adding to 20300317 its reverse (71300302), we get a palindrome (91600619).

The spelling of 20300317 in words is "twenty million, three hundred thousand, three hundred seventeen".