243321100044 has 24 divisors (see below), whose sum is σ = 619362800448. Its totient is φ = 73733666640.

The previous prime is 243321099979. The next prime is 243321100133. The reversal of 243321100044 is 440001123342.

It is a junction number, because it is equal to n+sod(n) for n = 243321099987 and 243321100023.

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, 921670702 + ... + 921670965.

It is an arithmetic number, because the mean of its divisors is an integer number (25806783352).

Almost surely, 2^243321100044 is an apocalyptic number.

It is an amenable number.

243321100044 is an abundant number, since it is smaller than the sum of its proper divisors (376041700404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243321100044 is a wasteful number, since it uses less digits than its factorization.

243321100044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843341685 (or 1843341683 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 243321100044 its reverse (440001123342), we get a palindrome (683322223386).

The spelling of 243321100044 in words is "two hundred forty-three billion, three hundred twenty-one million, one hundred thousand, forty-four".