243100504345 has 4 divisors (see below), whose sum is σ = 291720605220. Its totient is φ = 194480403472.

The previous prime is 243100504321. The next prime is 243100504351. The reversal of 243100504345 is 543405001342.

243100504345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 181694177536 + 61406326809 = 426256^2 + 247803^2 .

It is a cyclic number.

It is not a de Polignac number, because 243100504345 - 2²³ = 243092115737 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 24310050430 + ... + 24310050439.

It is an arithmetic number, because the mean of its divisors is an integer number (72930151305).

Almost surely, 2^243100504345 is an apocalyptic number.

It is an amenable number.

243100504345 is a deficient number, since it is larger than the sum of its proper divisors (48620100875).

243100504345 is an equidigital number, since it uses as much as digits as its factorization.

243100504345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48620100874.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 243100504345 its reverse (543405001342), we get a palindrome (786505505687).

The spelling of 243100504345 in words is "two hundred forty-three billion, one hundred million, five hundred four thousand, three hundred forty-five".