243321123343 has 8 divisors (see below), whose sum is σ = 245063638512. Its totient is φ = 241584777216.

The previous prime is 243321123293. The next prime is 243321123359. The reversal of 243321123343 is 343321123342.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243321123343 - 2¹³ = 243321115151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243321123943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1463080 + ... + 1620877.

It is an arithmetic number, because the mean of its divisors is an integer number (30632954814).

Almost surely, 2^243321123343 is an apocalyptic number.

243321123343 is a deficient number, since it is larger than the sum of its proper divisors (1742515169).

243321123343 is a wasteful number, since it uses less digits than its factorization.

243321123343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084521.

The product of its digits is 31104, while the sum is 31.

Adding to 243321123343 its reverse (343321123342), we get a palindrome (586642246685).

Subtracting 243321123343 from its reverse (343321123342), we obtain a palindrome (99999999999).

The spelling of 243321123343 in words is "two hundred forty-three billion, three hundred twenty-one million, one hundred twenty-three thousand, three hundred forty-three".