243005401475323 has 4 divisors (see below), whose sum is σ = 243017002460680. Its totient is φ = 242993800489968.

The previous prime is 243005401475303. The next prime is 243005401475339. The reversal of 243005401475323 is 323574104500342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243005401475323 - 2³³ = 242996811540731 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 243005401475323.

It is not an unprimeable number, because it can be changed into a prime (243005401475303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5800461258 + ... + 5800503151.

It is an arithmetic number, because the mean of its divisors is an integer number (60754250615170).

Almost surely, 2^{243005401475323} is an apocalyptic number.

243005401475323 is a deficient number, since it is larger than the sum of its proper divisors (11600985357).

243005401475323 is a wasteful number, since it uses less digits than its factorization.

243005401475323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11600985356.

The product of its (nonzero) digits is 1209600, while the sum is 43.

Adding to 243005401475323 its reverse (323574104500342), we get a palindrome (566579505975665).

The spelling of 243005401475323 in words is "two hundred forty-three trillion, five billion, four hundred one million, four hundred seventy-five thousand, three hundred twenty-three".