243013224020 has 96 divisors (see below), whose sum is σ = 587398963200. Its totient is φ = 82725287040.

The previous prime is 243013223987. The next prime is 243013224023. The reversal of 243013224020 is 20422310342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243013224023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13558865 + ... + 13576775.

It is an arithmetic number, because the mean of its divisors is an integer number (6118739200).

Almost surely, 2^243013224020 is an apocalyptic number.

243013224020 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 243013224020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293699481600).

243013224020 is an abundant number, since it is smaller than the sum of its proper divisors (344385739180).

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

243013224020 is a wasteful number, since it uses less digits than its factorization.

243013224020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18613 (or 18611 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 243013224020 its reverse (20422310342), we get a palindrome (263435534362).

The spelling of 243013224020 in words is "two hundred forty-three billion, thirteen million, two hundred twenty-four thousand, twenty".