243040054523 has 8 divisors (see below), whose sum is σ = 292379013120. Its totient is φ = 197355833640.

The previous prime is 243040054519. The next prime is 243040054547. The reversal of 243040054523 is 325450040342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243040054523 - 2² = 243040054519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243040054523.

It is not an unprimeable number, because it can be changed into a prime (243040054423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 913684283 + ... + 913684548.

It is an arithmetic number, because the mean of its divisors is an integer number (36547376640).

Almost surely, 2^243040054523 is an apocalyptic number.

243040054523 is a deficient number, since it is larger than the sum of its proper divisors (49338958597).

243040054523 is a wasteful number, since it uses less digits than its factorization.

243040054523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827368857.

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 243040054523 its reverse (325450040342), we get a palindrome (568490094865).

The spelling of 243040054523 in words is "two hundred forty-three billion, forty million, fifty-four thousand, five hundred twenty-three".