2020201321 has 2 divisors, whose sum is σ = 2020201322. Its totient is φ = 2020201320.

The previous prime is 2020201289. The next prime is 2020201331. The reversal of 2020201321 is 1231020202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1394200921 + 626000400 = 37339^2 + 25020^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020201321 - 2⁵ = 2020201289 is a prime.

It is not a weakly prime, because it can be changed into another prime (2020201331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010100660 + 1010100661.

It is an arithmetic number, because the mean of its divisors is an integer number (1010100661).

Almost surely, 2^2020201321 is an apocalyptic number.

It is an amenable number.

2020201321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020201321 is an equidigital number, since it uses as much as digits as its factorization.

2020201321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2020201321 is about 44946.6497194174. The cubic root of 2020201321 is about 1264.1488587253.

Adding to 2020201321 its reverse (1231020202), we get a palindrome (3251221523).

The spelling of 2020201321 in words is "two billion, twenty million, two hundred one thousand, three hundred twenty-one".