243223030320113 has 16 divisors (see below), whose sum is σ = 247375748970000. Its totient is φ = 239075669249280.

The previous prime is 243223030320079. The next prime is 243223030320163. The reversal of 243223030320113 is 311023030322342.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 114768733242289 + 128454297077824 = 10713017^2 + 11333768^2 .

It is a cyclic number.

It is not a de Polignac number, because 243223030320113 - 2¹² = 243223030316017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243223030320163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1603314095 + ... + 1603465787.

It is an arithmetic number, because the mean of its divisors is an integer number (15460984310625).

Almost surely, 2^{243223030320113} is an apocalyptic number.

It is an amenable number.

243223030320113 is a deficient number, since it is larger than the sum of its proper divisors (4152718649887).

243223030320113 is a wasteful number, since it uses less digits than its factorization.

243223030320113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169172.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 243223030320113 its reverse (311023030322342), we get a palindrome (554246060642455).

The spelling of 243223030320113 in words is "two hundred forty-three trillion, two hundred twenty-three billion, thirty million, three hundred twenty thousand, one hundred thirteen".