14223020321 has 4 divisors (see below), whose sum is σ = 14246223252. Its totient is φ = 14199817392.

The previous prime is 14223020309. The next prime is 14223020359. The reversal of 14223020321 is 12302032241.

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 4334905600 + 9888114721 = 65840^2 + 99439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14223020321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 14223020293 and 14223020302.

It is not an unprimeable number, because it can be changed into a prime (14223020521) 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, 11600546 + ... + 11601771.

It is an arithmetic number, because the mean of its divisors is an integer number (3561555813).

Almost surely, 2^14223020321 is an apocalyptic number.

It is an amenable number.

14223020321 is a deficient number, since it is larger than the sum of its proper divisors (23202931).

14223020321 is an equidigital number, since it uses as much as digits as its factorization.

14223020321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23202930.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 14223020321 its reverse (12302032241), we get a palindrome (26525052562).

The spelling of 14223020321 in words is "fourteen billion, two hundred twenty-three million, twenty thousand, three hundred twenty-one".