243312034323125 has 10 divisors (see below), whose sum is σ = 304042718090958. Its totient is φ = 194649627458000.

The previous prime is 243312034323091. The next prime is 243312034323139. The reversal of 243312034323125 is 521323430213342.

It can be written as a sum of positive squares in 5 ways, for example, as 183983235377764 + 59328798945361 = 13564042^2 + 7702519^2 .

It is not a de Polignac number, because 243312034323125 - 2²⁰ = 243312033274549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 194649626834 + ... + 194649628083.

Almost surely, 2^{243312034323125} is an apocalyptic number.

243312034323125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243312034323125 is a deficient number, since it is larger than the sum of its proper divisors (60730683767833).

243312034323125 is an frugal number, since it uses more digits than its factorization.

243312034323125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389299254937 (or 389299254922 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 38.

Adding to 243312034323125 its reverse (521323430213342), we get a palindrome (764635464536467).

The spelling of 243312034323125 in words is "two hundred forty-three trillion, three hundred twelve billion, thirty-four million, three hundred twenty-three thousand, one hundred twenty-five".