2311312 has 20 divisors (see below), whose sum is σ = 4714480. Its totient is φ = 1094688.

The previous prime is 2311289. The next prime is 2311321. The reversal of 2311312 is 2131132.

It is a super-2 number, since 2×2311312² = 10684326322688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2311292 and 2311301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3498 + ... + 4105.

It is an arithmetic number, because the mean of its divisors is an integer number (235724).

2^2311312 is an apocalyptic number.

It is an amenable number.

2311312 is an abundant number, since it is smaller than the sum of its proper divisors (2403168).

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

2311312 is a wasteful number, since it uses less digits than its factorization.

2311312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7630 (or 7624 counting only the distinct ones).

The product of its digits is 36, while the sum is 13.

The square root of 2311312 is about 1520.2999704006. The cubic root of 2311312 is about 132.2166628498.

Adding to 2311312 its reverse (2131132), we get a palindrome (4442444).

The spelling of 2311312 in words is "two million, three hundred eleven thousand, three hundred twelve".