243123345422 has 16 divisors (see below), whose sum is σ = 376501257600. Its totient is φ = 117624013920.

The previous prime is 243123345397. The next prime is 243123345481. The reversal of 243123345422 is 224543321342.

243123345422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×243123345422² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 184904 + ... + 721412.

It is an arithmetic number, because the mean of its divisors is an integer number (23531328600).

Almost surely, 2^243123345422 is an apocalyptic number.

243123345422 is a deficient number, since it is larger than the sum of its proper divisors (133377912178).

243123345422 is a wasteful number, since it uses less digits than its factorization.

243123345422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543851.

The product of its digits is 138240, while the sum is 35.

Adding to 243123345422 its reverse (224543321342), we get a palindrome (467666666764).

The spelling of 243123345422 in words is "two hundred forty-three billion, one hundred twenty-three million, three hundred forty-five thousand, four hundred twenty-two".