311212 has 18 divisors (see below), whose sum is σ = 599564. Its totient is φ = 141240.

The previous prime is 311203. The next prime is 311237. The reversal of 311212 is 212113.

311212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 163 + ... + 805.

2³¹¹²¹² is an apocalyptic number.

It is an amenable number.

311212 is a deficient number, since it is larger than the sum of its proper divisors (288352).

311212 is a wasteful number, since it uses less digits than its factorization.

311212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 656 counting only the distinct ones).

The product of its digits is 12, while the sum is 10.

The square root of 311212 is about 557.8637826567. The cubic root of 311212 is about 67.7670808365.

Adding to 311212 its reverse (212113), we get a palindrome (523325).

Subtracting from 311212 its reverse (212113), we obtain a palindrome (99099).

The spelling of 311212 in words is "three hundred eleven thousand, two hundred twelve", and thus it is an iban number.