311012 has 12 divisors (see below), whose sum is σ = 586236. Its totient is φ = 143520.

The previous prime is 311009. The next prime is 311021. The reversal of 311012 is 210113.

It can be written as a sum of positive squares in 2 ways, for example, as 23716 + 287296 = 154^2 + 536^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 311012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2939 + ... + 3042.

It is an arithmetic number, because the mean of its divisors is an integer number (48853).

2³¹¹⁰¹² is an apocalyptic number.

It is an amenable number.

311012 is a deficient number, since it is larger than the sum of its proper divisors (275224).

311012 is a wasteful number, since it uses less digits than its factorization.

311012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5998 (or 5996 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 311012 is about 557.6844986191. The cubic root of 311012 is about 67.7525609159.

Adding to 311012 its reverse (210113), we get a palindrome (521125).

The spelling of 311012 in words is "three hundred eleven thousand, twelve", and thus it is an iban number.