20334330321 has 8 divisors (see below), whose sum is σ = 27140481984. Its totient is φ = 13542199440.

The previous prime is 20334330293. The next prime is 20334330323. The reversal of 20334330321 is 12303343302.

It is a happy number.

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

It is not a de Polignac number, because 20334330321 - 2¹⁸ = 20334068177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20334330291 and 20334330300.

It is not an unprimeable number, because it can be changed into a prime (20334330323) 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, 3501810 + ... + 3507611.

It is an arithmetic number, because the mean of its divisors is an integer number (3392560248).

Almost surely, 2^20334330321 is an apocalyptic number.

It is an amenable number.

20334330321 is a deficient number, since it is larger than the sum of its proper divisors (6806151663).

20334330321 is an equidigital number, since it uses as much as digits as its factorization.

20334330321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7010391.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 20334330321 its reverse (12303343302), we get a palindrome (32637673623).

The spelling of 20334330321 in words is "twenty billion, three hundred thirty-four million, three hundred thirty thousand, three hundred twenty-one".