243140431112200 has 96 divisors (see below), whose sum is σ = 571173855033600. Its totient is φ = 96246031472640.

The previous prime is 243140431112191. The next prime is 243140431112219. The reversal of 243140431112200 is 2211134041342.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 251854021 + ... + 252817579.

It is an arithmetic number, because the mean of its divisors is an integer number (5949727656600).

Almost surely, 2^{243140431112200} is an apocalyptic number.

243140431112200 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 243140431112200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285586927516800).

243140431112200 is an abundant number, since it is smaller than the sum of its proper divisors (328033423921400).

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

243140431112200 is a wasteful number, since it uses less digits than its factorization.

243140431112200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976679 (or 976670 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 243140431112200 its reverse (2211134041342), we get a palindrome (245351565153542).

The spelling of 243140431112200 in words is "two hundred forty-three trillion, one hundred forty billion, four hundred thirty-one million, one hundred twelve thousand, two hundred".