243123340294 has 16 divisors (see below), whose sum is σ = 365750053200. Its totient is φ = 121206837024.

The previous prime is 243123340289. The next prime is 243123340331. The reversal of 243123340294 is 492043321342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2768184 + ... + 2854660.

It is an arithmetic number, because the mean of its divisors is an integer number (22859378325).

Almost surely, 2^243123340294 is an apocalyptic number.

243123340294 is a deficient number, since it is larger than the sum of its proper divisors (122626712906).

243123340294 is a wasteful number, since it uses less digits than its factorization.

243123340294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90567.

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 243123340294 in words is "two hundred forty-three billion, one hundred twenty-three million, three hundred forty thousand, two hundred ninety-four".