22431334321 has 4 divisors (see below), whose sum is σ = 24470546544. Its totient is φ = 20392122100.

The previous prime is 22431334309. The next prime is 22431334363. The reversal of 22431334321 is 12343313422.

It is a happy number.

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 not a de Polignac number, because 22431334321 - 2⁷ = 22431334193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22431334321.

It is not an unprimeable number, because it can be changed into a prime (22431334391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1019606095 + ... + 1019606116.

It is an arithmetic number, because the mean of its divisors is an integer number (6117636636).

Almost surely, 2^22431334321 is an apocalyptic number.

It is an amenable number.

22431334321 is a deficient number, since it is larger than the sum of its proper divisors (2039212223).

22431334321 is a wasteful number, since it uses less digits than its factorization.

22431334321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039212222.

The product of its digits is 10368, while the sum is 28.

Adding to 22431334321 its reverse (12343313422), we get a palindrome (34774647743).

The spelling of 22431334321 in words is "twenty-two billion, four hundred thirty-one million, three hundred thirty-four thousand, three hundred twenty-one".