22443322423 has 4 divisors (see below), whose sum is σ = 22443639120. Its totient is φ = 22443005728.

The previous prime is 22443322417. The next prime is 22443322477. The reversal of 22443322423 is 32422334422.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22443322423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22443322483) 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, 2238 + ... + 211876.

It is an arithmetic number, because the mean of its divisors is an integer number (5610909780).

Almost surely, 2^22443322423 is an apocalyptic number.

22443322423 is a deficient number, since it is larger than the sum of its proper divisors (316697).

22443322423 is a wasteful number, since it uses less digits than its factorization.

22443322423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316696.

The product of its digits is 55296, while the sum is 31.

Adding to 22443322423 its reverse (32422334422), we get a palindrome (54865656845).

The spelling of 22443322423 in words is "twenty-two billion, four hundred forty-three million, three hundred twenty-two thousand, four hundred twenty-three".