20323321001 has 2 divisors, whose sum is σ = 20323321002. Its totient is φ = 20323321000.

The previous prime is 20323320977. The next prime is 20323321003. The reversal of 20323321001 is 10012332302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19754021401 + 569299600 = 140549^2 + 23860^2 .

It is a cyclic number.

It is not a de Polignac number, because 20323321001 - 2⁶ = 20323320937 is a prime.

Together with 20323321003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20323321003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161660500 + 10161660501.

It is an arithmetic number, because the mean of its divisors is an integer number (10161660501).

Almost surely, 2^20323321001 is an apocalyptic number.

It is an amenable number.

20323321001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323321001 is an equidigital number, since it uses as much as digits as its factorization.

20323321001 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 17.

Adding to 20323321001 its reverse (10012332302), we get a palindrome (30335653303).

The spelling of 20323321001 in words is "twenty billion, three hundred twenty-three million, three hundred twenty-one thousand, one".