311340223304343 has 12 divisors (see below), whose sum is σ = 458198819203320. Its totient is φ = 203643919645296.

The previous prime is 311340223304221. The next prime is 311340223304351. The reversal of 311340223304343 is 343403322043113.

311340223304343 is a `hidden beast` number, since 3 + 1 + 1 + 3 + 4 + 0 + 2 + 2 + 3 + 304 + 343 = 666.

It is not a de Polignac number, because 311340223304343 - 2²⁰ = 311340222255767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311340223304298 and 311340223304307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311340223314343) 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 11 ways as a sum of consecutive naturals, for example, 326352434853 + ... + 326352435806.

It is an arithmetic number, because the mean of its divisors is an integer number (38183234933610).

Almost surely, 2^{311340223304343} is an apocalyptic number.

311340223304343 is a deficient number, since it is larger than the sum of its proper divisors (146858595898977).

311340223304343 is a wasteful number, since it uses less digits than its factorization.

311340223304343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652704870718 (or 652704870715 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 36.

Adding to 311340223304343 its reverse (343403322043113), we get a palindrome (654743545347456).

The spelling of 311340223304343 in words is "three hundred eleven trillion, three hundred forty billion, two hundred twenty-three million, three hundred four thousand, three hundred forty-three".