2312123 has 4 divisors (see below), whose sum is σ = 2522328. Its totient is φ = 2101920.

The previous prime is 2312099. The next prime is 2312137. The reversal of 2312123 is 3212132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2312123 - 2²⁰ = 1263547 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 2312098 and 2312107.

It is not an unprimeable number, because it can be changed into a prime (2312173) by changing a digit.

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, 105086 + ... + 105107.

It is an arithmetic number, because the mean of its divisors is an integer number (630582).

2^2312123 is an apocalyptic number.

2312123 is a deficient number, since it is larger than the sum of its proper divisors (210205).

2312123 is a wasteful number, since it uses less digits than its factorization.

2312123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210204.

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

The square root of 2312123 is about 1520.5666706856. The cubic root of 2312123 is about 132.2321252329.

Adding to 2312123 its reverse (3212132), we get a palindrome (5524255).

Subtracting 2312123 from its reverse (3212132), we obtain a palindrome (900009).

The spelling of 2312123 in words is "two million, three hundred twelve thousand, one hundred twenty-three".