311340353211 has 32 divisors (see below), whose sum is σ = 474792736320. Its totient is φ = 201544492032.

The previous prime is 311340353209. The next prime is 311340353213. The reversal of 311340353211 is 112353043113.

311340353211 is a `hidden beast` number, since 3 + 113 + 4 + 0 + 3 + 532 + 11 = 666.

It is an interprime number because it is at equal distance from previous prime (311340353209) and next prime (311340353213).

It is not a de Polignac number, because 311340353211 - 2¹ = 311340353209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (311340353213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 982680 + ... + 1260293.

It is an arithmetic number, because the mean of its divisors is an integer number (14837273010).

Almost surely, 2^311340353211 is an apocalyptic number.

311340353211 is a deficient number, since it is larger than the sum of its proper divisors (163452383109).

311340353211 is a wasteful number, since it uses less digits than its factorization.

311340353211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243132 (or 2243126 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 311340353211 its reverse (112353043113), we get a palindrome (423693396324).

The spelling of 311340353211 in words is "three hundred eleven billion, three hundred forty million, three hundred fifty-three thousand, two hundred eleven".