243123455222 has 4 divisors (see below), whose sum is σ = 364685182836. Its totient is φ = 121561727610.

The previous prime is 243123455219. The next prime is 243123455261. The reversal of 243123455222 is 222554321342.

243123455222 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 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 as a sum of consecutive naturals, namely, 60780863804 + ... + 60780863807.

It is an arithmetic number, because the mean of its divisors is an integer number (91171295709).

Almost surely, 2^243123455222 is an apocalyptic number.

243123455222 is a deficient number, since it is larger than the sum of its proper divisors (121561727614).

243123455222 is a wasteful number, since it uses less digits than its factorization.

243123455222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121561727613.

The product of its digits is 115200, while the sum is 35.

Adding to 243123455222 its reverse (222554321342), we get a palindrome (465677776564).

The spelling of 243123455222 in words is "two hundred forty-three billion, one hundred twenty-three million, four hundred fifty-five thousand, two hundred twenty-two".