243040230135 has 16 divisors (see below), whose sum is σ = 432071520480. Its totient is φ = 129621456000.

The previous prime is 243040229959. The next prime is 243040230137. The reversal of 243040230135 is 531032040342.

243040230135 is a `hidden beast` number, since 24 + 304 + 0 + 2 + 301 + 35 = 666.

It is not a de Polignac number, because 243040230135 - 2⁸ = 243040229879 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 243040230099 and 243040230108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243040230137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 900148866 + ... + 900149135.

It is an arithmetic number, because the mean of its divisors is an integer number (27004470030).

Almost surely, 2^243040230135 is an apocalyptic number.

243040230135 is a deficient number, since it is larger than the sum of its proper divisors (189031290345).

243040230135 is a wasteful number, since it uses less digits than its factorization.

243040230135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800298015 (or 1800298009 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 243040230135 its reverse (531032040342), we get a palindrome (774072270477).

The spelling of 243040230135 in words is "two hundred forty-three billion, forty million, two hundred thirty thousand, one hundred thirty-five".