20232230321 has 4 divisors (see below), whose sum is σ = 20884882944. Its totient is φ = 19579577700.

The previous prime is 20232230309. The next prime is 20232230341. The reversal of 20232230321 is 12303223202.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20232230321 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 = 20232230293 and 20232230302.

It is not an unprimeable number, because it can be changed into a prime (20232230341) 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, 326326265 + ... + 326326326.

It is an arithmetic number, because the mean of its divisors is an integer number (5221220736).

Almost surely, 2^20232230321 is an apocalyptic number.

It is an amenable number.

20232230321 is a deficient number, since it is larger than the sum of its proper divisors (652652623).

20232230321 is an equidigital number, since it uses as much as digits as its factorization.

20232230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652652622.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20232230321 its reverse (12303223202), we get a palindrome (32535453523).

The spelling of 20232230321 in words is "twenty billion, two hundred thirty-two million, two hundred thirty thousand, three hundred twenty-one".