243123455325 has 96 divisors (see below), whose sum is σ = 449656220160. Its totient is φ = 115322368000.

The previous prime is 243123455321. The next prime is 243123455369. The reversal of 243123455325 is 523554321342.

243123455325 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 243123455325 - 2² = 243123455321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243123455321) 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 95 ways as a sum of consecutive naturals, for example, 1667875 + ... + 1807775.

It is an arithmetic number, because the mean of its divisors is an integer number (4683918960).

Almost surely, 2^243123455325 is an apocalyptic number.

243123455325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243123455325 is a deficient number, since it is larger than the sum of its proper divisors (206532764835).

243123455325 is a wasteful number, since it uses less digits than its factorization.

243123455325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140007 (or 140002 counting only the distinct ones).

The product of its digits is 432000, while the sum is 39.

Adding to 243123455325 its reverse (523554321342), we get a palindrome (766677776667).

The spelling of 243123455325 in words is "two hundred forty-three billion, one hundred twenty-three million, four hundred fifty-five thousand, three hundred twenty-five".