20003023321 has 8 divisors (see below), whose sum is σ = 20117385288. Its totient is φ = 19888704000.

The previous prime is 20003023289. The next prime is 20003023331. The reversal of 20003023321 is 12332030002.

It can be written as a sum of positive squares in 4 ways, for example, as 705646096 + 19297377225 = 26564^2 + 138915^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20003023321 - 2⁵ = 20003023289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20003023295 and 20003023304.

It is not an unprimeable number, because it can be changed into a prime (20003023331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1706601 + ... + 1718281.

It is an arithmetic number, because the mean of its divisors is an integer number (2514673161).

Almost surely, 2^20003023321 is an apocalyptic number.

It is an amenable number.

20003023321 is a deficient number, since it is larger than the sum of its proper divisors (114361967).

20003023321 is a wasteful number, since it uses less digits than its factorization.

20003023321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21323.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20003023321 its reverse (12332030002), we get a palindrome (32335053323).

The spelling of 20003023321 in words is "twenty billion, three million, twenty-three thousand, three hundred twenty-one".