20321030201 has 2 divisors, whose sum is σ = 20321030202. Its totient is φ = 20321030200.

The previous prime is 20321030179. The next prime is 20321030227. The reversal of 20321030201 is 10203012302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14830368400 + 5490661801 = 121780^2 + 74099^2 .

It is a cyclic number.

It is not a de Polignac number, because 20321030201 - 2⁶ = 20321030137 is a prime.

It is not a weakly prime, because it can be changed into another prime (20321030231) 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, 10160515100 + 10160515101.

It is an arithmetic number, because the mean of its divisors is an integer number (10160515101).

Almost surely, 2^20321030201 is an apocalyptic number.

It is an amenable number.

20321030201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20321030201 is an equidigital number, since it uses as much as digits as its factorization.

20321030201 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 14.

Adding to 20321030201 its reverse (10203012302), we get a palindrome (30524042503).

The spelling of 20321030201 in words is "twenty billion, three hundred twenty-one million, thirty thousand, two hundred one".