4223123 has 16 divisors (see below), whose sum is σ = 4699296. Its totient is φ = 3778560.

The previous prime is 4223117. The next prime is 4223171. The reversal of 4223123 is 3213224.

It is not a de Polignac number, because 4223123 - 2¹² = 4219027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4273123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50840 + ... + 50922.

It is an arithmetic number, because the mean of its divisors is an integer number (293706).

Almost surely, 2^4223123 is an apocalyptic number.

4223123 is a deficient number, since it is larger than the sum of its proper divisors (476173).

4223123 is a wasteful number, since it uses less digits than its factorization.

4223123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214.

The product of its digits is 288, while the sum is 17.

The square root of 4223123 is about 2055.0238441439. The cubic root of 4223123 is about 161.6384126531.

Adding to 4223123 its reverse (3213224), we get a palindrome (7436347).

The spelling of 4223123 in words is "four million, two hundred twenty-three thousand, one hundred twenty-three".