23421203343 has 12 divisors (see below), whose sum is σ = 33838874160. Its totient is φ = 15610329216.

The previous prime is 23421203303. The next prime is 23421203381. The reversal of 23421203343 is 34330212432.

23421203343 is a `hidden beast` number, since 2 + 3 + 421 + 203 + 34 + 3 = 666.

It is not a de Polignac number, because 23421203343 - 2⁸ = 23421203087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23421203303) 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 in 11 ways as a sum of consecutive naturals, for example, 277971 + ... + 352292.

It is an arithmetic number, because the mean of its divisors is an integer number (2819906180).

Almost surely, 2^23421203343 is an apocalyptic number.

23421203343 is a deficient number, since it is larger than the sum of its proper divisors (10417670817).

23421203343 is a wasteful number, since it uses less digits than its factorization.

23421203343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634398 (or 634395 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 23421203343 its reverse (34330212432), we get a palindrome (57751415775).

The spelling of 23421203343 in words is "twenty-three billion, four hundred twenty-one million, two hundred three thousand, three hundred forty-three".