243440242130 has 32 divisors (see below), whose sum is σ = 439472246976. Its totient is φ = 97092091584.

The previous prime is 243440242079. The next prime is 243440242159. The reversal of 243440242130 is 31242044342.

It is a junction number, because it is equal to n+sod(n) for n = 243440242093 and 243440242102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5027897 + ... + 5076083.

It is an arithmetic number, because the mean of its divisors is an integer number (13733507718).

Almost surely, 2^243440242130 is an apocalyptic number.

243440242130 is a deficient number, since it is larger than the sum of its proper divisors (196032004846).

243440242130 is a wasteful number, since it uses less digits than its factorization.

243440242130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49658.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 243440242130 its reverse (31242044342), we get a palindrome (274682286472).

The spelling of 243440242130 in words is "two hundred forty-three billion, four hundred forty million, two hundred forty-two thousand, one hundred thirty".