243423030423 has 4 divisors (see below), whose sum is σ = 324564040568. Its totient is φ = 162282020280.

The previous prime is 243423030349. The next prime is 243423030449. The reversal of 243423030423 is 324030324342.

243423030423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 243423030423 - 2⁸ = 243423030167 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 (243423030523) 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, 40570505068 + ... + 40570505073.

It is an arithmetic number, because the mean of its divisors is an integer number (81141010142).

Almost surely, 2^243423030423 is an apocalyptic number.

243423030423 is a deficient number, since it is larger than the sum of its proper divisors (81141010145).

243423030423 is an equidigital number, since it uses as much as digits as its factorization.

243423030423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81141010144.

The product of its (nonzero) digits is 41472, while the sum is 30.

Adding to 243423030423 its reverse (324030324342), we get a palindrome (567453354765).

The spelling of 243423030423 in words is "two hundred forty-three billion, four hundred twenty-three million, thirty thousand, four hundred twenty-three".