243232144203720 has 768 divisors, whose sum is σ = 879340664217600. Its totient is φ = 53610729984000.

The previous prime is 243232144203709. The next prime is 243232144203749. The reversal of 243232144203720 is 27302441232342.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 114139907055 + ... + 114139909185.

It is an arithmetic number, because the mean of its divisors is an integer number (1144974823200).

Almost surely, 2^{243232144203720} is an apocalyptic number.

243232144203720 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 243232144203720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (439670332108800).

243232144203720 is an abundant number, since it is smaller than the sum of its proper divisors (636108520013880).

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

243232144203720 is a wasteful number, since it uses less digits than its factorization.

243232144203720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4130 (or 4119 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 39.

The spelling of 243232144203720 in words is "two hundred forty-three trillion, two hundred thirty-two billion, one hundred forty-four million, two hundred three thousand, seven hundred twenty".