243155044323 has 12 divisors (see below), whose sum is σ = 351321372688. Its totient is φ = 162058399920.

The previous prime is 243155044313. The next prime is 243155044331. The reversal of 243155044323 is 323440551342.

243155044323 is a `hidden beast` number, since 2 + 4 + 31 + 550 + 44 + 32 + 3 = 666.

It is not a de Polignac number, because 243155044323 - 2³⁰ = 242081302499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243155044313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3712648 + ... + 3777573.

Almost surely, 2^243155044323 is an apocalyptic number.

243155044323 is a deficient number, since it is larger than the sum of its proper divisors (108166328365).

243155044323 is a wasteful number, since it uses less digits than its factorization.

243155044323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7493834 (or 7493831 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 243155044323 its reverse (323440551342), we get a palindrome (566595595665).

The spelling of 243155044323 in words is "two hundred forty-three billion, one hundred fifty-five million, forty-four thousand, three hundred twenty-three".