423242111 has 4 divisors (see below), whose sum is σ = 423283824. Its totient is φ = 423200400.

The previous prime is 423242107. The next prime is 423242129. The reversal of 423242111 is 111242324.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 423242111 - 2² = 423242107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423232111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5291 + ... + 29571.

It is an arithmetic number, because the mean of its divisors is an integer number (105820956).

Almost surely, 2^423242111 is an apocalyptic number.

423242111 is a deficient number, since it is larger than the sum of its proper divisors (41713).

423242111 is a wasteful number, since it uses less digits than its factorization.

423242111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41712.

The product of its digits is 384, while the sum is 20.

The square root of 423242111 is about 20572.8488790444. The cubic root of 423242111 is about 750.8092663218.

Adding to 423242111 its reverse (111242324), we get a palindrome (534484435).

The spelling of 423242111 in words is "four hundred twenty-three million, two hundred forty-two thousand, one hundred eleven".