243000125320 has 256 divisors, whose sum is σ = 628516454400. Its totient is φ = 84057937920.

The previous prime is 243000125309. The next prime is 243000125321. The reversal of 243000125320 is 23521000342.

It is a junction number, because it is equal to n+sod(n) for n = 243000125291 and 243000125300.

It is not an unprimeable number, because it can be changed into a prime (243000125321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39554169 + ... + 39560311.

It is an arithmetic number, because the mean of its divisors is an integer number (2455142400).

Almost surely, 2^243000125320 is an apocalyptic number.

243000125320 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 243000125320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314258227200).

243000125320 is an abundant number, since it is smaller than the sum of its proper divisors (385516329080).

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

243000125320 is a wasteful number, since it uses less digits than its factorization.

243000125320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6300 (or 6296 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 243000125320 its reverse (23521000342), we get a palindrome (266521125662).

The spelling of 243000125320 in words is "two hundred forty-three billion, one hundred twenty-five thousand, three hundred twenty".