20330333321 has 4 divisors (see below), whose sum is σ = 20432496000. Its totient is φ = 20228170644.

The previous prime is 20330333311. The next prime is 20330333323. The reversal of 20330333321 is 12333303302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12333303302 = 2 ⋅6166651651.

It is a cyclic number.

It is not a de Polignac number, because 20330333321 - 2²² = 20326139017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20330333323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51081041 + ... + 51081438.

It is an arithmetic number, because the mean of its divisors is an integer number (5108124000).

Almost surely, 2^20330333321 is an apocalyptic number.

It is an amenable number.

20330333321 is a deficient number, since it is larger than the sum of its proper divisors (102162679).

20330333321 is a wasteful number, since it uses less digits than its factorization.

20330333321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102162678.

The product of its (nonzero) digits is 2916, while the sum is 23.

Adding to 20330333321 its reverse (12333303302), we get a palindrome (32663636623).

The spelling of 20330333321 in words is "twenty billion, three hundred thirty million, three hundred thirty-three thousand, three hundred twenty-one".