20321310001 has 2 divisors, whose sum is σ = 20321310002. Its totient is φ = 20321310000.

The previous prime is 20321309947. The next prime is 20321310017. The reversal of 20321310001 is 10001312302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13298702400 + 7022607601 = 115320^2 + 83801^2 .

It is a cyclic number.

It is not a de Polignac number, because 20321310001 - 2¹⁹ = 20320785713 is a prime.

It is not a weakly prime, because it can be changed into another prime (20321310071) 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, 10160655000 + 10160655001.

It is an arithmetic number, because the mean of its divisors is an integer number (10160655001).

Almost surely, 2^20321310001 is an apocalyptic number.

It is an amenable number.

20321310001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20321310001 is an equidigital number, since it uses as much as digits as its factorization.

20321310001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20321310001 its reverse (10001312302), we get a palindrome (30322622303).

The spelling of 20321310001 in words is "twenty billion, three hundred twenty-one million, three hundred ten thousand, one".