243120243829 has 2 divisors, whose sum is σ = 243120243830. Its totient is φ = 243120243828.

The previous prime is 243120243803. The next prime is 243120243941. The reversal of 243120243829 is 928342021342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 241279404804 + 1840839025 = 491202^2 + 42905^2 .

It is a cyclic number.

It is not a de Polignac number, because 243120243829 - 2⁵ = 243120243797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243120243791 and 243120243800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243120243029) by changing a digit.

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 as a sum of consecutive naturals, namely, 121560121914 + 121560121915.

It is an arithmetic number, because the mean of its divisors is an integer number (121560121915).

Almost surely, 2^243120243829 is an apocalyptic number.

It is an amenable number.

243120243829 is a deficient number, since it is larger than the sum of its proper divisors (1).

243120243829 is an equidigital number, since it uses as much as digits as its factorization.

243120243829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 243120243829 in words is "two hundred forty-three billion, one hundred twenty million, two hundred forty-three thousand, eight hundred twenty-nine".