243223312230240 has 384 divisors, whose sum is σ = 800870130385920. Its totient is φ = 61968098304000.

The previous prime is 243223312230229. The next prime is 243223312230347. The reversal of 243223312230240 is 42032213322342.

243223312230240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×243223312230240² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2546073357 + ... + 2546168883.

It is an arithmetic number, because the mean of its divisors is an integer number (2085599297880).

Almost surely, 2^{243223312230240} is an apocalyptic number.

243223312230240 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 243223312230240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400435065192960).

243223312230240 is an abundant number, since it is smaller than the sum of its proper divisors (557646818155680).

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

243223312230240 is a wasteful number, since it uses less digits than its factorization.

243223312230240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97486 (or 97478 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 243223312230240 its reverse (42032213322342), we get a palindrome (285255525552582).

The spelling of 243223312230240 in words is "two hundred forty-three trillion, two hundred twenty-three billion, three hundred twelve million, two hundred thirty thousand, two hundred forty".