10020230321 has 4 divisors (see below), whose sum is σ = 10609655652. Its totient is φ = 9430804992.

The previous prime is 10020230309. The next prime is 10020230323. The reversal of 10020230321 is 12303202001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6795694096 + 3224536225 = 82436^2 + 56785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10020230321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10020230296 and 10020230305.

It is not an unprimeable number, because it can be changed into a prime (10020230323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294712640 + ... + 294712673.

It is an arithmetic number, because the mean of its divisors is an integer number (2652413913).

Almost surely, 2^10020230321 is an apocalyptic number.

It is an amenable number.

10020230321 is a deficient number, since it is larger than the sum of its proper divisors (589425331).

10020230321 is an equidigital number, since it uses as much as digits as its factorization.

10020230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589425330.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 10020230321 its reverse (12303202001), we get a palindrome (22323432322).

The spelling of 10020230321 in words is "ten billion, twenty million, two hundred thirty thousand, three hundred twenty-one".