4123423 has 6 divisors (see below), whose sum is σ = 4271384. Its totient is φ = 3980424.

The previous prime is 4123421. The next prime is 4123439. The reversal of 4123423 is 3243214.

It is not a de Polignac number, because 4123423 - 2¹ = 4123421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4123423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4123421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1611 + ... + 3292.

Almost surely, 2^4123423 is an apocalyptic number.

4123423 is a deficient number, since it is larger than the sum of its proper divisors (147961).

4123423 is an equidigital number, since it uses as much as digits as its factorization.

4123423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4961 (or 4932 counting only the distinct ones).

The product of its digits is 576, while the sum is 19.

The square root of 4123423 is about 2030.6213334839. The cubic root of 4123423 is about 160.3562763932.

Adding to 4123423 its reverse (3243214), we get a palindrome (7366637).

The spelling of 4123423 in words is "four million, one hundred twenty-three thousand, four hundred twenty-three".