243125105345 has 32 divisors (see below), whose sum is σ = 313404940800. Its totient is φ = 180412194816.

The previous prime is 243125105329. The next prime is 243125105347. The reversal of 243125105345 is 543501521342.

It is not a de Polignac number, because 243125105345 - 2⁴ = 243125105329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243125105347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1908866 + ... + 2032244.

It is an arithmetic number, because the mean of its divisors is an integer number (9793904400).

Almost surely, 2^243125105345 is an apocalyptic number.

It is an amenable number.

243125105345 is a deficient number, since it is larger than the sum of its proper divisors (70279835455).

243125105345 is a wasteful number, since it uses less digits than its factorization.

243125105345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123737.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 243125105345 its reverse (543501521342), we get a palindrome (786626626687).

The spelling of 243125105345 in words is "two hundred forty-three billion, one hundred twenty-five million, one hundred five thousand, three hundred forty-five".