243003043042 has 4 divisors (see below), whose sum is σ = 364504564566. Its totient is φ = 121501521520.

The previous prime is 243003043027. The next prime is 243003043051. The reversal of 243003043042 is 240340300342.

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

It can be written as a sum of positive squares in only one way, i.e., 232496588041 + 10506455001 = 482179^2 + 102501^2 .

It is a super-2 number, since 2×243003043042² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243003042998 and 243003043016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60750760759 + ... + 60750760762.

Almost surely, 2^243003043042 is an apocalyptic number.

243003043042 is a deficient number, since it is larger than the sum of its proper divisors (121501521524).

243003043042 is a wasteful number, since it uses less digits than its factorization.

243003043042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121501521523.

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 243003043042 its reverse (240340300342), we get a palindrome (483343343384).

The spelling of 243003043042 in words is "two hundred forty-three billion, three million, forty-three thousand, forty-two".