243100112225 has 6 divisors (see below), whose sum is σ = 301444139190. Its totient is φ = 194480089760.

The previous prime is 243100112219. The next prime is 243100112237. The reversal of 243100112225 is 522211001342.

243100112225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 7959494656 + 235140617569 = 89216^2 + 484913^2 .

It is not a de Polignac number, because 243100112225 - 2⁴ = 243100112209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243100112225.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 4862002220 + ... + 4862002269.

It is an arithmetic number, because the mean of its divisors is an integer number (50240689865).

Almost surely, 2^243100112225 is an apocalyptic number.

243100112225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243100112225 is a deficient number, since it is larger than the sum of its proper divisors (58344026965).

243100112225 is an equidigital number, since it uses as much as digits as its factorization.

243100112225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9724004499 (or 9724004494 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 243100112225 its reverse (522211001342), we get a palindrome (765311113567).

The spelling of 243100112225 in words is "two hundred forty-three billion, one hundred million, one hundred twelve thousand, two hundred twenty-five".