21334312323 has 6 divisors (see below), whose sum is σ = 30816228924. Its totient is φ = 14222874876.

The previous prime is 21334312261. The next prime is 21334312327. The reversal of 21334312323 is 32321343312.

21334312323 is a `hidden beast` number, since 2 + 1 + 334 + 3 + 1 + 2 + 323 = 666.

It is not a de Polignac number, because 21334312323 - 2²⁶ = 21267203459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21334312327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1185239565 + ... + 1185239582.

It is an arithmetic number, because the mean of its divisors is an integer number (5136038154).

Almost surely, 2^21334312323 is an apocalyptic number.

21334312323 is a deficient number, since it is larger than the sum of its proper divisors (9481916601).

21334312323 is a wasteful number, since it uses less digits than its factorization.

21334312323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370479153 (or 2370479150 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

Adding to 21334312323 its reverse (32321343312), we get a palindrome (53655655635).

The spelling of 21334312323 in words is "twenty-one billion, three hundred thirty-four million, three hundred twelve thousand, three hundred twenty-three".