311204312 has 16 divisors (see below), whose sum is σ = 617832360. Its totient is φ = 146449024.

The previous prime is 311204297. The next prime is 311204417. The reversal of 311204312 is 213402113.

311204312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (17).

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 3 ways as a sum of consecutive naturals, for example, 1143998 + ... + 1144269.

Almost surely, 2^311204312 is an apocalyptic number.

It is an amenable number.

311204312 is a deficient number, since it is larger than the sum of its proper divisors (306628048).

311204312 is a wasteful number, since it uses less digits than its factorization.

311204312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288290 (or 2288286 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 311204312 is about 17640.9838727890. The cubic root of 311204312 is about 677.6652280571.

Adding to 311204312 its reverse (213402113), we get a palindrome (524606425).

The spelling of 311204312 in words is "three hundred eleven million, two hundred four thousand, three hundred twelve".