311204 has 6 divisors (see below), whose sum is σ = 544614. Its totient is φ = 155600.

The previous prime is 311203. The next prime is 311237. The reversal of 311204 is 402113.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 270400 + 40804 = 520^2 + 202^2 .

It is not an unprimeable number, because it can be changed into a prime (311203) by changing a digit.

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 as a sum of consecutive naturals, namely, 38897 + ... + 38904.

It is an arithmetic number, because the mean of its divisors is an integer number (90769).

2³¹¹²⁰⁴ is an apocalyptic number.

It is an amenable number.

311204 is a deficient number, since it is larger than the sum of its proper divisors (233410).

311204 is a wasteful number, since it uses less digits than its factorization.

311204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77805 (or 77803 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 311204 is about 557.8566124014. The cubic root of 311204 is about 67.7665001591.

Adding to 311204 its reverse (402113), we get a palindrome (713317).

Subtracting 311204 from its reverse (402113), we obtain a palindrome (90909).

It can be divided in two parts, 311 and 204, that added together give a palindrome (515).

The spelling of 311204 in words is "three hundred eleven thousand, two hundred four", and thus it is an iban number.