243111755545340 has 48 divisors (see below), whose sum is σ = 557721544504320. Its totient is φ = 88281320201280.

The previous prime is 243111755545313. The next prime is 243111755545349. The reversal of 243111755545340 is 43545557111342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243111755545349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 768307352 + ... + 768623711.

It is an arithmetic number, because the mean of its divisors is an integer number (11619198843840).

Almost surely, 2^{243111755545340} is an apocalyptic number.

243111755545340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243111755545340 is an abundant number, since it is smaller than the sum of its proper divisors (314609788958980).

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

243111755545340 is a wasteful number, since it uses less digits than its factorization.

243111755545340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536931802 (or 1536931800 counting only the distinct ones).

The product of its (nonzero) digits is 5040000, while the sum is 50.

The spelling of 243111755545340 in words is "two hundred forty-three trillion, one hundred eleven billion, seven hundred fifty-five million, five hundred forty-five thousand, three hundred forty".