2321123 has 4 divisors (see below), whose sum is σ = 2652720. Its totient is φ = 1989528.

The previous prime is 2321117. The next prime is 2321147. The reversal of 2321123 is 3211232.

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 2321123 - 2²⁰ = 1272547 is a prime.

It is a super-2 number, since 2×2321123² = 10775223962258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2321098 and 2321107.

It is not an unprimeable number, because it can be changed into a prime (2321153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165788 + ... + 165801.

It is an arithmetic number, because the mean of its divisors is an integer number (663180).

2^2321123 is an apocalyptic number.

2321123 is a deficient number, since it is larger than the sum of its proper divisors (331597).

2321123 is an equidigital number, since it uses as much as digits as its factorization.

2321123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331596.

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

The square root of 2321123 is about 1523.5232193833. The cubic root of 2321123 is about 132.4034754460.

Adding to 2321123 its reverse (3211232), we get a palindrome (5532355).

It can be divided in two parts, 2 and 321123, that multiplied together give a palindrome (642246).

The spelling of 2321123 in words is "two million, three hundred twenty-one thousand, one hundred twenty-three".