311302312 has 16 divisors (see below), whose sum is σ = 599467860. Its totient is φ = 151444224.

The previous prime is 311302261. The next prime is 311302339. The reversal of 311302312 is 213203113.

311302312 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 2 ways, for example, as 260693316 + 50608996 = 16146^2 + 7114^2 .

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, 525553 + ... + 526144.

Almost surely, 2^311302312 is an apocalyptic number.

It is an amenable number.

311302312 is a deficient number, since it is larger than the sum of its proper divisors (288165548).

311302312 is a wasteful number, since it uses less digits than its factorization.

311302312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051740 (or 1051736 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 311302312 is about 17643.7612770067. The cubic root of 311302312 is about 677.7363541308.

Adding to 311302312 its reverse (213203113), we get a palindrome (524505425).

The spelling of 311302312 in words is "three hundred eleven million, three hundred two thousand, three hundred twelve".