22431342223 has 4 divisors (see below), whose sum is σ = 23750832960. Its totient is φ = 21111851488.

The previous prime is 22431342209. The next prime is 22431342233. The reversal of 22431342223 is 32224313422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22431342223 - 2²¹ = 22429245071 is a prime.

It is a super-2 number, since 2×22431342223² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22431342191 and 22431342200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22431342233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659745343 + ... + 659745376.

It is an arithmetic number, because the mean of its divisors is an integer number (5937708240).

Almost surely, 2^22431342223 is an apocalyptic number.

22431342223 is a deficient number, since it is larger than the sum of its proper divisors (1319490737).

22431342223 is a wasteful number, since it uses less digits than its factorization.

22431342223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319490736.

The product of its digits is 13824, while the sum is 28.

Adding to 22431342223 its reverse (32224313422), we get a palindrome (54655655645).

The spelling of 22431342223 in words is "twenty-two billion, four hundred thirty-one million, three hundred forty-two thousand, two hundred twenty-three".