423331111 has 4 divisors (see below), whose sum is σ = 483806992. Its totient is φ = 362855232.

The previous prime is 423331079. The next prime is 423331147. The reversal of 423331111 is 111133324.

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 423331111 - 2⁵ = 423331079 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 (423331151) 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, 30237930 + ... + 30237943.

It is an arithmetic number, because the mean of its divisors is an integer number (120951748).

Almost surely, 2^423331111 is an apocalyptic number.

423331111 is a deficient number, since it is larger than the sum of its proper divisors (60475881).

423331111 is an equidigital number, since it uses as much as digits as its factorization.

423331111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60475880.

The product of its digits is 216, while the sum is 19.

The square root of 423331111 is about 20575.0118104462. The cubic root of 423331111 is about 750.8618897413.

Adding to 423331111 its reverse (111133324), we get a palindrome (534464435).

It can be divided in two parts, 4233 and 31111, that added together give a square (35344 = 188²).

The spelling of 423331111 in words is "four hundred twenty-three million, three hundred thirty-one thousand, one hundred eleven".