243444130220 has 24 divisors (see below), whose sum is σ = 528861387600. Its totient is φ = 94019801792.

The previous prime is 243444130217. The next prime is 243444130271. The reversal of 243444130220 is 22031444342.

243444130220 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 (29).

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 7 ways as a sum of consecutive naturals, for example, 209865050 + ... + 209866209.

It is an arithmetic number, because the mean of its divisors is an integer number (22035891150).

Almost surely, 2^243444130220 is an apocalyptic number.

243444130220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243444130220 is an abundant number, since it is smaller than the sum of its proper divisors (285417257380).

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

243444130220 is a wasteful number, since it uses less digits than its factorization.

243444130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419731297 (or 419731295 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 243444130220 its reverse (22031444342), we get a palindrome (265475574562).

The spelling of 243444130220 in words is "two hundred forty-three billion, four hundred forty-four million, one hundred thirty thousand, two hundred twenty".