20320203301 has 2 divisors, whose sum is σ = 20320203302. Its totient is φ = 20320203300.

The previous prime is 20320203257. The next prime is 20320203359. The reversal of 20320203301 is 10330202302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19487880801 + 832322500 = 139599^2 + 28850^2 .

It is a cyclic number.

It is not a de Polignac number, because 20320203301 - 2⁹ = 20320202789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20320203601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160101650 + 10160101651.

It is an arithmetic number, because the mean of its divisors is an integer number (10160101651).

Almost surely, 2^20320203301 is an apocalyptic number.

It is an amenable number.

20320203301 is a deficient number, since it is larger than the sum of its proper divisors (1).

20320203301 is an equidigital number, since it uses as much as digits as its factorization.

20320203301 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 16.

Adding to 20320203301 its reverse (10330202302), we get a palindrome (30650405603).

Subtracting from 20320203301 its reverse (10330202302), we obtain a palindrome (9990000999).

The spelling of 20320203301 in words is "twenty billion, three hundred twenty million, two hundred three thousand, three hundred one".