243142220000 has 120 divisors (see below), whose sum is σ = 598512770856. Its totient is φ = 97200576000.

The previous prime is 243142219997. The next prime is 243142220017. The reversal of 243142220000 is 22241342.

243142220000 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 (20).

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 60737999 + ... + 60742001.

Almost surely, 2^243142220000 is an apocalyptic number.

243142220000 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 243142220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299256385428).

243142220000 is an abundant number, since it is smaller than the sum of its proper divisors (355370550856).

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

243142220000 is an equidigital number, since it uses as much as digits as its factorization.

243142220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7070 (or 7047 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 243142220000 its reverse (22241342), we get a palindrome (243164461342).

The spelling of 243142220000 in words is "two hundred forty-three billion, one hundred forty-two million, two hundred twenty thousand".