243002002143240 has 48 divisors (see below), whose sum is σ = 789756506966700. Its totient is φ = 64800533904768.

The previous prime is 243002002143209. The next prime is 243002002143289. The reversal of 243002002143240 is 42341200200342.

243002002143240 is a `hidden beast` number, since 2 + 4 + 3 + 0 + 0 + 200 + 21 + 432 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 230241717943524 + 12760284199716 = 15173718^2 + 3572154^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 337502780395 + ... + 337502781114.

Almost surely, 2^{243002002143240} is an apocalyptic number.

243002002143240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243002002143240 is an abundant number, since it is smaller than the sum of its proper divisors (546754504823460).

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

243002002143240 is a wasteful number, since it uses less digits than its factorization.

243002002143240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675005561526 (or 675005561519 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 243002002143240 its reverse (42341200200342), we get a palindrome (285343202343582).

The spelling of 243002002143240 in words is "two hundred forty-three trillion, two billion, two million, one hundred forty-three thousand, two hundred forty".