243120341252 has 12 divisors (see below), whose sum is σ = 425571971916. Its totient is φ = 121528349280.

The previous prime is 243120341249. The next prime is 243120341257. The reversal of 243120341252 is 252143021342.

It can be written as a sum of positive squares in 2 ways, for example, as 229993139776 + 13127201476 = 479576^2 + 114574^2 .

It is not an unprimeable number, because it can be changed into a prime (243120341257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7938143 + ... + 7968710.

It is an arithmetic number, because the mean of its divisors is an integer number (35464330993).

Almost surely, 2^243120341252 is an apocalyptic number.

It is an amenable number.

243120341252 is a deficient number, since it is larger than the sum of its proper divisors (182451630664).

243120341252 is a wasteful number, since it uses less digits than its factorization.

243120341252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15910678 (or 15910676 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 243120341252 its reverse (252143021342), we get a palindrome (495263362594).

The spelling of 243120341252 in words is "two hundred forty-three billion, one hundred twenty million, three hundred forty-one thousand, two hundred fifty-two".