21343341024423 has 24 divisors (see below), whose sum is σ = 33765923108736. Its totient is φ = 12883822890000.

The previous prime is 21343341024359. The next prime is 21343341024437. The reversal of 21343341024423 is 32442014334312.

21343341024423 is a `hidden beast` number, since 2 + 13 + 43 + 341 + 0 + 244 + 23 = 666.

It is not a de Polignac number, because 21343341024423 - 2⁶ = 21343341024359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21343341024323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 429435915 + ... + 429485612.

It is an arithmetic number, because the mean of its divisors is an integer number (1406913462864).

Almost surely, 2^{21343341024423} is an apocalyptic number.

21343341024423 is a deficient number, since it is larger than the sum of its proper divisors (12422582084313).

21343341024423 is a wasteful number, since it uses less digits than its factorization.

21343341024423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858921795 (or 858921792 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

Adding to 21343341024423 its reverse (32442014334312), we get a palindrome (53785355358735).

The spelling of 21343341024423 in words is "twenty-one trillion, three hundred forty-three billion, three hundred forty-one million, twenty-four thousand, four hundred twenty-three".