243121244434 has 32 divisors (see below), whose sum is σ = 369637385472. Its totient is φ = 119918400000.

The previous prime is 243121244417. The next prime is 243121244557. The reversal of 243121244434 is 434442121342.

It is a self number, because there is not a number n which added to its sum of digits gives 243121244434.

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, 91500834 + ... + 91503490.

It is an arithmetic number, because the mean of its divisors is an integer number (11551168296).

Almost surely, 2^243121244434 is an apocalyptic number.

243121244434 is a deficient number, since it is larger than the sum of its proper divisors (126516141038).

243121244434 is a wasteful number, since it uses less digits than its factorization.

243121244434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242.

The product of its digits is 73728, while the sum is 34.

Adding to 243121244434 its reverse (434442121342), we get a palindrome (677563365776).

The spelling of 243121244434 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred forty-four thousand, four hundred thirty-four".