311056 has 10 divisors (see below), whose sum is σ = 602702. Its totient is φ = 155520.

The previous prime is 311041. The next prime is 311099. The reversal of 311056 is 650113.

311056 = T₈₉ + T₉₀ + ... + T₁₃₆.

311056 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 230400 + 80656 = 480^2 + 284^2 .

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 19441 = 311056 / (3 + 1 + 1 + 0 + 5 + 6).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9705 + ... + 9736.

2³¹¹⁰⁵⁶ is an apocalyptic number.

It is an amenable number.

311056 is a deficient number, since it is larger than the sum of its proper divisors (291646).

311056 is a wasteful number, since it uses less digits than its factorization.

311056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19449 (or 19443 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 311056 is about 557.7239460522. The cubic root of 311056 is about 67.7557558324.

Adding to 311056 its reverse (650113), we get a palindrome (961169).

The spelling of 311056 in words is "three hundred eleven thousand, fifty-six".