10030310021 has 2 divisors, whose sum is σ = 10030310022. Its totient is φ = 10030310020.

The previous prime is 10030309981. The next prime is 10030310027. The reversal of 10030310021 is 12001303001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7531809796 + 2498500225 = 86786^2 + 49985^2 .

It is a cyclic number.

It is not a de Polignac number, because 10030310021 - 2³⁰ = 8956568197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10030309984 and 10030310011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10030310027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5015155010 + 5015155011.

It is an arithmetic number, because the mean of its divisors is an integer number (5015155011).

Almost surely, 2^10030310021 is an apocalyptic number.

It is an amenable number.

10030310021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10030310021 is an equidigital number, since it uses as much as digits as its factorization.

10030310021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 10030310021 its reverse (12001303001), we get a palindrome (22031613022).

The spelling of 10030310021 in words is "ten billion, thirty million, three hundred ten thousand, twenty-one".