243317713340 has 48 divisors (see below), whose sum is σ = 551644853760. Its totient is φ = 89616307200.

The previous prime is 243317713313. The next prime is 243317713351. The reversal of 243317713340 is 43317713342.

It is a junction number, because it is equal to n+sod(n) for n = 243317713294 and 243317713303.

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, 1062620 + ... + 1271139.

It is an arithmetic number, because the mean of its divisors is an integer number (11492601120).

Almost surely, 2^243317713340 is an apocalyptic number.

243317713340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243317713340 is an abundant number, since it is smaller than the sum of its proper divisors (308327140420).

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

243317713340 is a wasteful number, since it uses less digits than its factorization.

243317713340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334182 (or 2334180 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 38.

The spelling of 243317713340 in words is "two hundred forty-three billion, three hundred seventeen million, seven hundred thirteen thousand, three hundred forty".