10020321001 has 2 divisors, whose sum is σ = 10020321002. Its totient is φ = 10020321000.

The previous prime is 10020320971. The next prime is 10020321011. The reversal of 10020321001 is 10012302001.

It is an a-pointer prime, because the next prime (10020321011) can be obtained adding 10020321001 to its sum of digits (10).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8222136976 + 1798184025 = 90676^2 + 42405^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020321001 - 2¹¹ = 10020318953 is a prime.

It is not a weakly prime, because it can be changed into another prime (10020321011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010160500 + 5010160501.

It is an arithmetic number, because the mean of its divisors is an integer number (5010160501).

Almost surely, 2^10020321001 is an apocalyptic number.

It is an amenable number.

10020321001 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020321001 is an equidigital number, since it uses as much as digits as its factorization.

10020321001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 10020321001 its reverse (10012302001), we get a palindrome (20032623002).

The spelling of 10020321001 in words is "ten billion, twenty million, three hundred twenty-one thousand, one".