311363312 has 20 divisors (see below), whose sum is σ = 649671960. Its totient is φ = 143706048.

The previous prime is 311363309. The next prime is 311363357. The reversal of 311363312 is 213363113.

It is a happy number.

It is a super-2 number, since 2×311363312² = 193894224119218688, which contains 22 as substring.

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, 748262 + ... + 748677.

It is an arithmetic number, because the mean of its divisors is an integer number (32483598).

Almost surely, 2^311363312 is an apocalyptic number.

It is an amenable number.

311363312 is an abundant number, since it is smaller than the sum of its proper divisors (338308648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311363312 is a wasteful number, since it uses less digits than its factorization.

311363312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496960 (or 1496954 counting only the distinct ones).

The product of its digits is 972, while the sum is 23.

The square root of 311363312 is about 17645.4898486837. The cubic root of 311363312 is about 677.7806189456.

The spelling of 311363312 in words is "three hundred eleven million, three hundred sixty-three thousand, three hundred twelve".