243120422 has 4 divisors (see below), whose sum is σ = 364680636. Its totient is φ = 121560210.

The previous prime is 243120413. The next prime is 243120463. The reversal of 243120422 is 224021342.

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

It is a junction number, because it is equal to n+sod(n) for n = 243120394 and 243120403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60780104 + ... + 60780107.

It is an arithmetic number, because the mean of its divisors is an integer number (91170159).

Almost surely, 2^243120422 is an apocalyptic number.

243120422 is a deficient number, since it is larger than the sum of its proper divisors (121560214).

243120422 is a wasteful number, since it uses less digits than its factorization.

243120422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121560213.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 243120422 is about 15592.3193271559. The cubic root of 243120422 is about 624.1282113139.

Adding to 243120422 its reverse (224021342), we get a palindrome (467141764).

The spelling of 243120422 in words is "two hundred forty-three million, one hundred twenty thousand, four hundred twenty-two".