2321312 has 48 divisors (see below), whose sum is σ = 5366592. Its totient is φ = 967680.

The previous prime is 2321309. The next prime is 2321317. The reversal of 2321312 is 2131232.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (2321317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9512 + ... + 9752.

It is an arithmetic number, because the mean of its divisors is an integer number (111804).

2^2321312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2321312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2683296).

2321312 is an abundant number, since it is smaller than the sum of its proper divisors (3045280).

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

2321312 is a wasteful number, since it uses less digits than its factorization.

2321312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 293 counting only the distinct ones).

The product of its digits is 72, while the sum is 14.

The square root of 2321312 is about 1523.5852453998. The cubic root of 2321312 is about 132.4070690481.

Adding to 2321312 its reverse (2131232), we get a palindrome (4452544).

The spelling of 2321312 in words is "two million, three hundred twenty-one thousand, three hundred twelve".