243120231144 has 96 divisors (see below), whose sum is σ = 752962129920. Its totient is φ = 69421650048.

The previous prime is 243120231091. The next prime is 243120231191. The reversal of 243120231144 is 441132021342.

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 23 ways as a sum of consecutive naturals, for example, 710809 + ... + 995735.

It is an arithmetic number, because the mean of its divisors is an integer number (7843355520).

Almost surely, 2^243120231144 is an apocalyptic number.

243120231144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243120231144 is an abundant number, since it is smaller than the sum of its proper divisors (509841898776).

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

243120231144 is a wasteful number, since it uses less digits than its factorization.

243120231144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286639 (or 286632 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 243120231144 its reverse (441132021342), we get a palindrome (684252252486).

The spelling of 243120231144 in words is "two hundred forty-three billion, one hundred twenty million, two hundred thirty-one thousand, one hundred forty-four".