21323384683 has 12 divisors (see below), whose sum is σ = 22267103040. Its totient is φ = 20395365872.

The previous prime is 21323384669. The next prime is 21323384749. The reversal of 21323384683 is 38648332312.

It is not a de Polignac number, because 21323384683 - 2⁵ = 21323384651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21323384633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 299910 + ... + 364132.

It is an arithmetic number, because the mean of its divisors is an integer number (1855591920).

Almost surely, 2^21323384683 is an apocalyptic number.

21323384683 is a deficient number, since it is larger than the sum of its proper divisors (943718357).

21323384683 is an equidigital number, since it uses as much as digits as its factorization.

21323384683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64466 (or 64359 counting only the distinct ones).

The product of its digits is 497664, while the sum is 43.

The spelling of 21323384683 in words is "twenty-one billion, three hundred twenty-three million, three hundred eighty-four thousand, six hundred eighty-three".