243312330225 has 48 divisors (see below), whose sum is σ = 419921942720. Its totient is φ = 124189459200.

The previous prime is 243312330197. The next prime is 243312330227. The reversal of 243312330225 is 522033213342.

It is a happy number.

243312330225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243312330225 - 2⁶ = 243312330161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243312330192 and 243312330201.

It is not an unprimeable number, because it can be changed into a prime (243312330227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 549415 + ... + 887964.

Almost surely, 2^243312330225 is an apocalyptic number.

243312330225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243312330225 is a deficient number, since it is larger than the sum of its proper divisors (176609612495).

243312330225 is a wasteful number, since it uses less digits than its factorization.

243312330225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437490 (or 1437485 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 243312330225 its reverse (522033213342), we get a palindrome (765345543567).

The spelling of 243312330225 in words is "two hundred forty-three billion, three hundred twelve million, three hundred thirty thousand, two hundred twenty-five".