2123312 has 10 divisors (see below), whose sum is σ = 4113948. Its totient is φ = 1061648.

The previous prime is 2123309. The next prime is 2123327. The reversal of 2123312 is 2133212.

It is a happy number.

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 as a sum of consecutive naturals, namely, 66338 + ... + 66369.

2^2123312 is an apocalyptic number.

It is an amenable number.

2123312 is a deficient number, since it is larger than the sum of its proper divisors (1990636).

2123312 is a wasteful number, since it uses less digits than its factorization.

2123312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132715 (or 132709 counting only the distinct ones).

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

The square root of 2123312 is about 1457.1588794637. The cubic root of 2123312 is about 128.5300287636.

Adding to 2123312 its reverse (2133212), we get a palindrome (4256524).

The spelling of 2123312 in words is "two million, one hundred twenty-three thousand, three hundred twelve".