243120540235 has 16 divisors (see below), whose sum is σ = 293782810464. Its totient is φ = 193142138112.

The previous prime is 243120540227. The next prime is 243120540269. The reversal of 243120540235 is 532045021342.

It is a cyclic number.

It is not a de Polignac number, because 243120540235 - 2³ = 243120540227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243120540197 and 243120540206.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154804 + ... + 714286.

It is an arithmetic number, because the mean of its divisors is an integer number (18361425654).

Almost surely, 2^243120540235 is an apocalyptic number.

243120540235 is a deficient number, since it is larger than the sum of its proper divisors (50662270229).

243120540235 is a wasteful number, since it uses less digits than its factorization.

243120540235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560094.

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

Adding to 243120540235 its reverse (532045021342), we get a palindrome (775165561577).

The spelling of 243120540235 in words is "two hundred forty-three billion, one hundred twenty million, five hundred forty thousand, two hundred thirty-five".