4021243421323 has 2 divisors, whose sum is σ = 4021243421324. Its totient is φ = 4021243421322.

The previous prime is 4021243421207. The next prime is 4021243421341. The reversal of 4021243421323 is 3231243421204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4021243421323 - 2³³ = 4012653486731 is a prime.

It is not a weakly prime, because it can be changed into another prime (4021243421353) 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, 2010621710661 + 2010621710662.

It is an arithmetic number, because the mean of its divisors is an integer number (2010621710662).

Almost surely, 2^{4021243421323} is an apocalyptic number.

4021243421323 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021243421323 is an equidigital number, since it uses as much as digits as its factorization.

4021243421323 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 31.

Adding to 4021243421323 its reverse (3231243421204), we get a palindrome (7252486842527).

The spelling of 4021243421323 in words is "four trillion, twenty-one billion, two hundred forty-three million, four hundred twenty-one thousand, three hundred twenty-three".