243041020320 has 192 divisors, whose sum is σ = 875754270720. Its totient is φ = 55501022208.

The previous prime is 243041020301. The next prime is 243041020349. The reversal of 243041020320 is 23020140342.

243041020320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3673291 + ... + 3738869.

It is an arithmetic number, because the mean of its divisors is an integer number (4561220160).

Almost surely, 2^243041020320 is an apocalyptic number.

243041020320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243041020320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (437877135360).

243041020320 is an abundant number, since it is smaller than the sum of its proper divisors (632713250400).

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

243041020320 is a wasteful number, since it uses less digits than its factorization.

243041020320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66707 (or 66699 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 243041020320 its reverse (23020140342), we get a palindrome (266061160662).

The spelling of 243041020320 in words is "two hundred forty-three billion, forty-one million, twenty thousand, three hundred twenty".