311340105 has 48 divisors (see below), whose sum is σ = 563681664. Its totient is φ = 164851200.

The previous prime is 311340047. The next prime is 311340181. The reversal of 311340105 is 501043113.

311340105 is a `hidden beast` number, since 311 + 340 + 10 + 5 = 666.

It is not a de Polignac number, because 311340105 - 2⁸ = 311339849 is a prime.

It is a super-2 number, since 2×311340105² = 193865321962822050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 182617 + ... + 184313.

It is an arithmetic number, because the mean of its divisors is an integer number (11743368).

Almost surely, 2^311340105 is an apocalyptic number.

It is an amenable number.

311340105 is a deficient number, since it is larger than the sum of its proper divisors (252341559).

311340105 is a wasteful number, since it uses less digits than its factorization.

311340105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868 (or 1856 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 311340105 is about 17644.8322462981. The cubic root of 311340105 is about 677.7637794047.

Adding to 311340105 its reverse (501043113), we get a palindrome (812383218).

The spelling of 311340105 in words is "three hundred eleven million, three hundred forty thousand, one hundred five".