243220010320 has 80 divisors (see below), whose sum is σ = 659459577600. Its totient is φ = 83389708416.

The previous prime is 243220010317. The next prime is 243220010351. The reversal of 243220010320 is 23010022342.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 4404412 + ... + 4459291.

It is an arithmetic number, because the mean of its divisors is an integer number (8243244720).

Almost surely, 2^243220010320 is an apocalyptic number.

243220010320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243220010320 is an abundant number, since it is smaller than the sum of its proper divisors (416239567280).

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

243220010320 is an equidigital number, since it uses as much as digits as its factorization.

243220010320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8863737 (or 8863717 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 243220010320 its reverse (23010022342), we get a palindrome (266230032662).

The spelling of 243220010320 in words is "two hundred forty-three billion, two hundred twenty million, ten thousand, three hundred twenty".