21412234424323 has 4 divisors (see below), whose sum is σ = 22343201138448. Its totient is φ = 20481267710200.

The previous prime is 21412234424299. The next prime is 21412234424401. The reversal of 21412234424323 is 32342443221412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21412234424323 - 2⁵ = 21412234424291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21412234424923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465483357028 + ... + 465483357073.

It is an arithmetic number, because the mean of its divisors is an integer number (5585800284612).

Almost surely, 2^{21412234424323} is an apocalyptic number.

21412234424323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21412234424323 is a deficient number, since it is larger than the sum of its proper divisors (930966714125).

21412234424323 is an equidigital number, since it uses as much as digits as its factorization.

21412234424323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930966714124.

The product of its digits is 221184, while the sum is 37.

Adding to 21412234424323 its reverse (32342443221412), we get a palindrome (53754677645735).

The spelling of 21412234424323 in words is "twenty-one trillion, four hundred twelve billion, two hundred thirty-four million, four hundred twenty-four thousand, three hundred twenty-three".