21330241323 has 8 divisors (see below), whose sum is σ = 28447362000. Its totient is φ = 14216640768.

The previous prime is 21330241279. The next prime is 21330241357. The reversal of 21330241323 is 32314203312.

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

It is not a de Polignac number, because 21330241323 - 2²² = 21326047019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21330241293 and 21330241302.

It is not an unprimeable number, because it can be changed into a prime (21330241363) 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, 865858 + ... + 890151.

It is an arithmetic number, because the mean of its divisors is an integer number (3555920250).

Almost surely, 2^21330241323 is an apocalyptic number.

21330241323 is a deficient number, since it is larger than the sum of its proper divisors (7117120677).

21330241323 is a wasteful number, since it uses less digits than its factorization.

21330241323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760061.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21330241323 its reverse (32314203312), we get a palindrome (53644444635).

The spelling of 21330241323 in words is "twenty-one billion, three hundred thirty million, two hundred forty-one thousand, three hundred twenty-three".