243120244340 has 24 divisors (see below), whose sum is σ = 512215563552. Its totient is φ = 96931326240.

The previous prime is 243120244307. The next prime is 243120244369. The reversal of 243120244340 is 43442021342.

243120244340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19791926 + ... + 19804205.

It is an arithmetic number, because the mean of its divisors is an integer number (21342315148).

Almost surely, 2^243120244340 is an apocalyptic number.

243120244340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243120244340 is an abundant number, since it is smaller than the sum of its proper divisors (269095319212).

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

243120244340 is a wasteful number, since it uses less digits than its factorization.

243120244340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39596447 (or 39596445 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 243120244340 its reverse (43442021342), we get a palindrome (286562265682).

The spelling of 243120244340 in words is "two hundred forty-three billion, one hundred twenty million, two hundred forty-four thousand, three hundred forty".