21333222323 has 16 divisors (see below), whose sum is σ = 24631188480. Its totient is φ = 18097980000.

The previous prime is 21333222299. The next prime is 21333222341. The reversal of 21333222323 is 32322233312.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21333222323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21333222292 and 21333222301.

It is not an unprimeable number, because it can be changed into a prime (21333222343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3780338 + ... + 3785976.

It is an arithmetic number, because the mean of its divisors is an integer number (1539449280).

Almost surely, 2^21333222323 is an apocalyptic number.

21333222323 is a deficient number, since it is larger than the sum of its proper divisors (3297966157).

21333222323 is a wasteful number, since it uses less digits than its factorization.

21333222323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11098.

The product of its digits is 7776, while the sum is 26.

Adding to 21333222323 its reverse (32322233312), we get a palindrome (53655455635).

The spelling of 21333222323 in words is "twenty-one billion, three hundred thirty-three million, two hundred twenty-two thousand, three hundred twenty-three".