243042122 has 16 divisors (see below), whose sum is σ = 380769120. Its totient is φ = 116230608.

The previous prime is 243042119. The next prime is 243042161. The reversal of 243042122 is 221240342.

It is a junction number, because it is equal to n+sod(n) for n = 243042094 and 243042103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23468 + ... + 32199.

It is an arithmetic number, because the mean of its divisors is an integer number (23798070).

Almost surely, 2^243042122 is an apocalyptic number.

243042122 is a deficient number, since it is larger than the sum of its proper divisors (137726998).

243042122 is a wasteful number, since it uses less digits than its factorization.

243042122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55765.

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

The square root of 243042122 is about 15589.8082733560. The cubic root of 243042122 is about 624.0612013307.

Adding to 243042122 its reverse (221240342), we get a palindrome (464282464).

The spelling of 243042122 in words is "two hundred forty-three million, forty-two thousand, one hundred twenty-two".