243241020200 has 48 divisors (see below), whose sum is σ = 570540162780. Its totient is φ = 96435368960.

The previous prime is 243241020193. The next prime is 243241020257. The reversal of 243241020200 is 2020142342.

It can be written as a sum of positive squares in 6 ways, for example, as 186104164 + 243054916036 = 13642^2 + 493006^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5358839 + ... + 5404038.

Almost surely, 2^243241020200 is an apocalyptic number.

243241020200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243241020200 is an abundant number, since it is smaller than the sum of its proper divisors (327299142580).

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

243241020200 is a wasteful number, since it uses less digits than its factorization.

243241020200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10763006 (or 10762997 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 243241020200 its reverse (2020142342), we get a palindrome (245261162542).

The spelling of 243241020200 in words is "two hundred forty-three billion, two hundred forty-one million, twenty thousand, two hundred".