243121224382 has 4 divisors (see below), whose sum is σ = 364681836576. Its totient is φ = 121560612190.

The previous prime is 243121224293. The next prime is 243121224383. The reversal of 243121224382 is 283422121342.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243121224383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60780306094 + ... + 60780306097.

It is an arithmetic number, because the mean of its divisors is an integer number (91170459144).

Almost surely, 2^243121224382 is an apocalyptic number.

243121224382 is a deficient number, since it is larger than the sum of its proper divisors (121560612194).

243121224382 is a wasteful number, since it uses less digits than its factorization.

243121224382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121560612193.

The product of its digits is 36864, while the sum is 34.

The spelling of 243121224382 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred twenty-four thousand, three hundred eighty-two".