243342423 has 12 divisors (see below), whose sum is σ = 351633568. Its totient is φ = 162164160.

The previous prime is 243342419. The next prime is 243342433. The reversal of 243342423 is 324243342.

It is not a de Polignac number, because 243342423 - 2² = 243342419 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 (243342433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33711 + ... + 40287.

Almost surely, 2^243342423 is an apocalyptic number.

243342423 is a deficient number, since it is larger than the sum of its proper divisors (108291145).

243342423 is a wasteful number, since it uses less digits than its factorization.

243342423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10694 (or 10691 counting only the distinct ones).

The product of its digits is 13824, while the sum is 27.

The square root of 243342423 is about 15599.4366244426. The cubic root of 243342423 is about 624.3181239693.

Adding to 243342423 its reverse (324243342), we get a palindrome (567585765).

The spelling of 243342423 in words is "two hundred forty-three million, three hundred forty-two thousand, four hundred twenty-three".