423505111 has 4 divisors (see below), whose sum is σ = 425699632. Its totient is φ = 421310592.

The previous prime is 423505091. The next prime is 423505123. The reversal of 423505111 is 111505324.

It is a happy number.

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 423505111 - 2¹³ = 423496919 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 (423505171) 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, 1096971 + ... + 1097356.

It is an arithmetic number, because the mean of its divisors is an integer number (106424908).

Almost surely, 2^423505111 is an apocalyptic number.

423505111 is a deficient number, since it is larger than the sum of its proper divisors (2194521).

423505111 is a wasteful number, since it uses less digits than its factorization.

423505111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194520.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 423505111 is about 20579.2398061736. The cubic root of 423505111 is about 750.9647501810.

The spelling of 423505111 in words is "four hundred twenty-three million, five hundred five thousand, one hundred eleven".