21223334323 has 4 divisors (see below), whose sum is σ = 21433466448. Its totient is φ = 21013202200.

The previous prime is 21223334303. The next prime is 21223334339. The reversal of 21223334323 is 32343332212.

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 21223334323 - 2³³ = 12633399731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21223334291 and 21223334300.

It is not an unprimeable number, because it can be changed into a prime (21223334303) 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, 105065911 + ... + 105066112.

It is an arithmetic number, because the mean of its divisors is an integer number (5358366612).

Almost surely, 2^21223334323 is an apocalyptic number.

21223334323 is a deficient number, since it is larger than the sum of its proper divisors (210132125).

21223334323 is a wasteful number, since it uses less digits than its factorization.

21223334323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210132124.

The product of its digits is 15552, while the sum is 28.

Adding to 21223334323 its reverse (32343332212), we get a palindrome (53566666535).

The spelling of 21223334323 in words is "twenty-one billion, two hundred twenty-three million, three hundred thirty-four thousand, three hundred twenty-three".