20233230321 has 16 divisors (see below), whose sum is σ = 28432087040. Its totient is φ = 12763325520.

The previous prime is 20233230317. The next prime is 20233230379. The reversal of 20233230321 is 12303233202.

It is not a de Polignac number, because 20233230321 - 2² = 20233230317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20233230421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168745 + ... + 262566.

It is an arithmetic number, because the mean of its divisors is an integer number (1777005440).

Almost surely, 2^20233230321 is an apocalyptic number.

It is an amenable number.

20233230321 is a deficient number, since it is larger than the sum of its proper divisors (8198856719).

20233230321 is a wasteful number, since it uses less digits than its factorization.

20233230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432156.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20233230321 its reverse (12303233202), we get a palindrome (32536463523).

The spelling of 20233230321 in words is "twenty billion, two hundred thirty-three million, two hundred thirty thousand, three hundred twenty-one".