243443130442 has 16 divisors (see below), whose sum is σ = 375081297480. Its totient is φ = 118416860928.

The previous prime is 243443130439. The next prime is 243443130443. The reversal of 243443130442 is 244031344342.

243443130442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 172190971681 + 71252158761 = 414959^2 + 266931^2 .

It is a junction number, because it is equal to n+sod(n) for n = 243443130398 and 243443130407.

It is not an unprimeable number, because it can be changed into a prime (243443130443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395238 + ... + 801934.

Almost surely, 2^243443130442 is an apocalyptic number.

243443130442 is a deficient number, since it is larger than the sum of its proper divisors (131638167038).

243443130442 is a wasteful number, since it uses less digits than its factorization.

243443130442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414825.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 243443130442 its reverse (244031344342), we get a palindrome (487474474784).

The spelling of 243443130442 in words is "two hundred forty-three billion, four hundred forty-three million, one hundred thirty thousand, four hundred forty-two".