20321211301 has 2 divisors, whose sum is σ = 20321211302. Its totient is φ = 20321211300.

The previous prime is 20321211247. The next prime is 20321211389. The reversal of 20321211301 is 10311212302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18168344100 + 2152867201 = 134790^2 + 46399^2 .

It is a cyclic number.

It is not a de Polignac number, because 20321211301 - 2⁷ = 20321211173 is a prime.

It is a super-2 number, since 2×20321211301² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20321214301) 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, 10160605650 + 10160605651.

It is an arithmetic number, because the mean of its divisors is an integer number (10160605651).

Almost surely, 2^20321211301 is an apocalyptic number.

It is an amenable number.

20321211301 is a deficient number, since it is larger than the sum of its proper divisors (1).

20321211301 is an equidigital number, since it uses as much as digits as its factorization.

20321211301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20321211301 its reverse (10311212302), we get a palindrome (30632423603).

The spelling of 20321211301 in words is "twenty billion, three hundred twenty-one million, two hundred eleven thousand, three hundred one".