10020301021 has 2 divisors, whose sum is σ = 10020301022. Its totient is φ = 10020301020.

The previous prime is 10020301013. The next prime is 10020301043. The reversal of 10020301021 is 12010302001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5150215225 + 4870085796 = 71765^2 + 69786^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020301021 - 2³ = 10020301013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10020300989 and 10020301007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14020301021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010150510 + 5010150511.

It is an arithmetic number, because the mean of its divisors is an integer number (5010150511).

Almost surely, 2^10020301021 is an apocalyptic number.

It is an amenable number.

10020301021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020301021 is an equidigital number, since it uses as much as digits as its factorization.

10020301021 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 10020301021 its reverse (12010302001), we get a palindrome (22030603022).

The spelling of 10020301021 in words is "ten billion, twenty million, three hundred one thousand, twenty-one".