21843024323 has 2 divisors, whose sum is σ = 21843024324. Its totient is φ = 21843024322.

The previous prime is 21843024263. The next prime is 21843024349. The reversal of 21843024323 is 32342034812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21843024323 - 2³² = 17548057027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21843024323.

It is not a weakly prime, because it can be changed into another prime (21843024023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10921512161 + 10921512162.

It is an arithmetic number, because the mean of its divisors is an integer number (10921512162).

Almost surely, 2^21843024323 is an apocalyptic number.

21843024323 is a deficient number, since it is larger than the sum of its proper divisors (1).

21843024323 is an equidigital number, since it uses as much as digits as its factorization.

21843024323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 21843024323 in words is "twenty-one billion, eight hundred forty-three million, twenty-four thousand, three hundred twenty-three".