243113322140 has 48 divisors (see below), whose sum is σ = 550213134912. Its totient is φ = 89699122176.

The previous prime is 243113322139. The next prime is 243113322181. The reversal of 243113322140 is 41223311342.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13412 + ... + 697428.

It is an arithmetic number, because the mean of its divisors is an integer number (11462773644).

Almost surely, 2^243113322140 is an apocalyptic number.

243113322140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243113322140 is an abundant number, since it is smaller than the sum of its proper divisors (307099812772).

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

243113322140 is a wasteful number, since it uses less digits than its factorization.

243113322140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685406 (or 685404 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 243113322140 its reverse (41223311342), we get a palindrome (284336633482).

The spelling of 243113322140 in words is "two hundred forty-three billion, one hundred thirteen million, three hundred twenty-two thousand, one hundred forty".