243113530404140 has 96 divisors (see below), whose sum is σ = 570807024883200. Its totient is φ = 86207605491200.

The previous prime is 243113530404139. The next prime is 243113530404169. The reversal of 243113530404140 is 41404035311342.

It is a self number, because there is not a number n which added to its sum of digits gives 243113530404140.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12512609 + ... + 25353351.

It is an arithmetic number, because the mean of its divisors is an integer number (5945906509200).

Almost surely, 2^{243113530404140} is an apocalyptic number.

243113530404140 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 243113530404140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285403512441600).

243113530404140 is an abundant number, since it is smaller than the sum of its proper divisors (327693494479060).

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

243113530404140 is a wasteful number, since it uses less digits than its factorization.

243113530404140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12842903 (or 12842901 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 243113530404140 its reverse (41404035311342), we get a palindrome (284517565715482).

The spelling of 243113530404140 in words is "two hundred forty-three trillion, one hundred thirteen billion, five hundred thirty million, four hundred four thousand, one hundred forty".