243230221024 has 96 divisors (see below), whose sum is σ = 562403761920. Its totient is φ = 101379382272.

The previous prime is 243230221019. The next prime is 243230221033. The reversal of 243230221024 is 420122032342.

It is a self number, because there is not a number n which added to its sum of digits gives 243230221024.

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, 2190067 + ... + 2298445.

It is an arithmetic number, because the mean of its divisors is an integer number (5858372520).

Almost surely, 2^243230221024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243230221024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281201880960).

243230221024 is an abundant number, since it is smaller than the sum of its proper divisors (319173540896).

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

243230221024 is a wasteful number, since it uses less digits than its factorization.

243230221024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108672 (or 108664 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 243230221024 its reverse (420122032342), we get a palindrome (663352253366).

The spelling of 243230221024 in words is "two hundred forty-three billion, two hundred thirty million, two hundred twenty-one thousand, twenty-four".