22423040321 has 4 divisors (see below), whose sum is σ = 24461498544. Its totient is φ = 20384582100.

The previous prime is 22423040309. The next prime is 22423040333. The reversal of 22423040321 is 12304032422.

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 an interprime number because it is at equal distance from previous prime (22423040309) and next prime (22423040333).

It is a cyclic number.

It is not a de Polignac number, because 22423040321 - 2²⁶ = 22355931457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22423040221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1019229095 + ... + 1019229116.

It is an arithmetic number, because the mean of its divisors is an integer number (6115374636).

Almost surely, 2^22423040321 is an apocalyptic number.

It is an amenable number.

22423040321 is a deficient number, since it is larger than the sum of its proper divisors (2038458223).

22423040321 is a wasteful number, since it uses less digits than its factorization.

22423040321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038458222.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 22423040321 its reverse (12304032422), we get a palindrome (34727072743).

The spelling of 22423040321 in words is "twenty-two billion, four hundred twenty-three million, forty thousand, three hundred twenty-one".