243121244204 has 24 divisors (see below), whose sum is σ = 435863356656. Its totient is φ = 118589184000.

The previous prime is 243121244167. The next prime is 243121244209. The reversal of 243121244204 is 402442121342.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (243121244209) 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, 4415564 + ... + 4470284.

It is an arithmetic number, because the mean of its divisors is an integer number (18160973194).

Almost surely, 2^243121244204 is an apocalyptic number.

It is an amenable number.

243121244204 is a deficient number, since it is larger than the sum of its proper divisors (192742112452).

243121244204 is a wasteful number, since it uses less digits than its factorization.

243121244204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81857 (or 81855 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 243121244204 its reverse (402442121342), we get a palindrome (645563365546).

The spelling of 243121244204 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred forty-four thousand, two hundred four".