423443234105 has 4 divisors (see below), whose sum is σ = 508131880932. Its totient is φ = 338754587280.

The previous prime is 423443234101. The next prime is 423443234167. The reversal of 423443234105 is 501432344324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 112861058704 + 310582175401 = 335948^2 + 557299^2 .

It is not a de Polignac number, because 423443234105 - 2² = 423443234101 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423443234101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42344323406 + ... + 42344323415.

It is an arithmetic number, because the mean of its divisors is an integer number (127032970233).

Almost surely, 2^423443234105 is an apocalyptic number.

It is an amenable number.

423443234105 is a deficient number, since it is larger than the sum of its proper divisors (84688646827).

423443234105 is an equidigital number, since it uses as much as digits as its factorization.

423443234105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84688646826.

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 423443234105 its reverse (501432344324), we get a palindrome (924875578429).

The spelling of 423443234105 in words is "four hundred twenty-three billion, four hundred forty-three million, two hundred thirty-four thousand, one hundred five".