243400313234 has 16 divisors (see below), whose sum is σ = 393443350272. Its totient is φ = 112264826448.

The previous prime is 243400313207. The next prime is 243400313293. The reversal of 243400313234 is 432313004342.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 243400313197 and 243400313206.

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, 3033794 + ... + 3112989.

It is an arithmetic number, because the mean of its divisors is an integer number (24590209392).

Almost surely, 2^243400313234 is an apocalyptic number.

243400313234 is a deficient number, since it is larger than the sum of its proper divisors (150043037038).

243400313234 is a wasteful number, since it uses less digits than its factorization.

243400313234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6148321.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 243400313234 its reverse (432313004342), we get a palindrome (675713317576).

The spelling of 243400313234 in words is "two hundred forty-three billion, four hundred million, three hundred thirteen thousand, two hundred thirty-four".