423111 has 16 divisors (see below), whose sum is σ = 640640. Its totient is φ = 246240.

The previous prime is 423109. The next prime is 423121. The reversal of 423111 is 111324.

It is a happy number.

It is not a de Polignac number, because 423111 - 2¹ = 423109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456 + ... + 1026.

It is an arithmetic number, because the mean of its divisors is an integer number (40040).

2⁴²³¹¹¹ is an apocalyptic number.

423111 is a deficient number, since it is larger than the sum of its proper divisors (217529).

423111 is a wasteful number, since it uses less digits than its factorization.

423111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606.

The product of its digits is 24, while the sum is 12.

The square root of 423111 is about 650.4698301997. The cubic root of 423111 is about 75.0731730307.

Adding to 423111 its reverse (111324), we get a palindrome (534435).

The spelling of 423111 in words is "four hundred twenty-three thousand, one hundred eleven", and thus it is an iban number.