20303320003321 has 8 divisors (see below), whose sum is σ = 20376387790344. Its totient is φ = 20230257989760.

The previous prime is 20303320003159. The next prime is 20303320003411. The reversal of 20303320003321 is 12330002330302.

It can be written as a sum of positive squares in 4 ways, for example, as 11286482135296 + 9016837868025 = 3359536^2 + 3002805^2 .

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 20303320003321 - 2²¹ = 20303317906169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20303320003292 and 20303320003301.

It is not an unprimeable number, because it can be changed into a prime (20303320003921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5665495 + ... + 8526691.

It is an arithmetic number, because the mean of its divisors is an integer number (2547048473793).

Almost surely, 2^{20303320003321} is an apocalyptic number.

It is an amenable number.

20303320003321 is a deficient number, since it is larger than the sum of its proper divisors (73067787023).

20303320003321 is a wasteful number, since it uses less digits than its factorization.

20303320003321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886731.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 20303320003321 its reverse (12330002330302), we get a palindrome (32633322333623).

The spelling of 20303320003321 in words is "twenty trillion, three hundred three billion, three hundred twenty million, three thousand, three hundred twenty-one".