21233013323 has 8 divisors (see below), whose sum is σ = 22391411520. Its totient is φ = 20078702280.

The previous prime is 21233013157. The next prime is 21233013337. The reversal of 21233013323 is 32331033212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21233013323 - 2¹² = 21233009227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21233013623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1011113 + ... + 1031898.

It is an arithmetic number, because the mean of its divisors is an integer number (2798926440).

Almost surely, 2^21233013323 is an apocalyptic number.

21233013323 is a deficient number, since it is larger than the sum of its proper divisors (1158398197).

21233013323 is a wasteful number, since it uses less digits than its factorization.

21233013323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043577.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 21233013323 its reverse (32331033212), we get a palindrome (53564046535).

The spelling of 21233013323 in words is "twenty-one billion, two hundred thirty-three million, thirteen thousand, three hundred twenty-three".