20313320201 has 2 divisors, whose sum is σ = 20313320202. Its totient is φ = 20313320200.

The previous prime is 20313320143. The next prime is 20313320207. The reversal of 20313320201 is 10202331302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15927702025 + 4385618176 = 126205^2 + 66224^2 .

It is a cyclic number.

It is not a de Polignac number, because 20313320201 - 2³⁰ = 19239578377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20313320201.

It is not a weakly prime, because it can be changed into another prime (20313320207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10156660100 + 10156660101.

It is an arithmetic number, because the mean of its divisors is an integer number (10156660101).

Almost surely, 2^20313320201 is an apocalyptic number.

It is an amenable number.

20313320201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20313320201 is an equidigital number, since it uses as much as digits as its factorization.

20313320201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20313320201 its reverse (10202331302), we get a palindrome (30515651503).

The spelling of 20313320201 in words is "twenty billion, three hundred thirteen million, three hundred twenty thousand, two hundred one".