243310121044 has 24 divisors (see below), whose sum is σ = 435759464448. Its totient is φ = 118808256000.

The previous prime is 243310121039. The next prime is 243310121051. The reversal of 243310121044 is 440121013342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1098669 + ... + 1301419.

It is an arithmetic number, because the mean of its divisors is an integer number (18156644352).

Almost surely, 2^243310121044 is an apocalyptic number.

It is an amenable number.

243310121044 is a deficient number, since it is larger than the sum of its proper divisors (192449343404).

243310121044 is a wasteful number, since it uses less digits than its factorization.

243310121044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209775 (or 209773 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 243310121044 its reverse (440121013342), we get a palindrome (683431134386).

The spelling of 243310121044 in words is "two hundred forty-three billion, three hundred ten million, one hundred twenty-one thousand, forty-four".