311323202212311 has 12 divisors (see below), whose sum is σ = 450330566404680. Its totient is φ = 207252726147600.

The previous prime is 311323202212301. The next prime is 311323202212313. The reversal of 311323202212311 is 113212202323113.

311323202212311 is a `hidden beast` number, since 3 + 1 + 1 + 3 + 2 + 320 + 2 + 21 + 2 + 311 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-311323202212311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311323202212313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24672937281 + ... + 24672949898.

It is an arithmetic number, because the mean of its divisors is an integer number (37527547200390).

Almost surely, 2^{311323202212311} is an apocalyptic number.

311323202212311 is a deficient number, since it is larger than the sum of its proper divisors (139007364192369).

311323202212311 is a wasteful number, since it uses less digits than its factorization.

311323202212311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49345887886 (or 49345887883 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 311323202212311 its reverse (113212202323113), we get a palindrome (424535404535424).

The spelling of 311323202212311 in words is "three hundred eleven trillion, three hundred twenty-three billion, two hundred two million, two hundred twelve thousand, three hundred eleven".