243423303140 has 24 divisors (see below), whose sum is σ = 511767896640. Its totient is φ = 97259043168.

The previous prime is 243423303119. The next prime is 243423303157. The reversal of 243423303140 is 41303324342.

243423303140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 6874280 + ... + 6909599.

It is an arithmetic number, because the mean of its divisors is an integer number (21323662360).

Almost surely, 2^243423303140 is an apocalyptic number.

243423303140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243423303140 is an abundant number, since it is smaller than the sum of its proper divisors (268344593500).

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

243423303140 is a wasteful number, since it uses less digits than its factorization.

243423303140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13784771 (or 13784769 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 243423303140 its reverse (41303324342), we get a palindrome (284726627482).

The spelling of 243423303140 in words is "two hundred forty-three billion, four hundred twenty-three million, three hundred three thousand, one hundred forty".