311308 has 12 divisors (see below), whose sum is σ = 548800. Its totient is φ = 154512.

The previous prime is 311303. The next prime is 311323. The reversal of 311308 is 803113.

311308 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 311291 and 311300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311303) by changing a digit.

311308 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718 + ... + 1066.

2³¹¹³⁰⁸ is an apocalyptic number.

It is an amenable number.

311308 is a deficient number, since it is larger than the sum of its proper divisors (237492).

311308 is a wasteful number, since it uses less digits than its factorization.

311308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 311308 is about 557.9498185321. The cubic root of 311308 is about 67.7740481888.

It can be divided in two parts, 3 and 11308, that added together give a palindrome (11311).

The spelling of 311308 in words is "three hundred eleven thousand, three hundred eight".