243104440319 has 4 divisors (see below), whose sum is σ = 261804781896. Its totient is φ = 224404098744.

The previous prime is 243104440297. The next prime is 243104440333. The reversal of 243104440319 is 913044401342.

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 243104440319 - 2¹⁶ = 243104374783 is a prime.

It is a super-2 number, since 2×243104440319² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243104440379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9350170769 + ... + 9350170794.

It is an arithmetic number, because the mean of its divisors is an integer number (65451195474).

Almost surely, 2^243104440319 is an apocalyptic number.

243104440319 is a deficient number, since it is larger than the sum of its proper divisors (18700341577).

243104440319 is a wasteful number, since it uses less digits than its factorization.

243104440319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18700341576.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 243104440319 in words is "two hundred forty-three billion, one hundred four million, four hundred forty thousand, three hundred nineteen".