4123423243 has 6 divisors (see below), whose sum is σ = 4260728652. Its totient is φ = 3990408660.

The previous prime is 4123423237. The next prime is 4123423247. The reversal of 4123423243 is 3423243214.

It is not a de Polignac number, because 4123423243 - 2²¹ = 4121326091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4123423247) 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 5 ways as a sum of consecutive naturals, for example, 2144421 + ... + 2146342.

It is an arithmetic number, because the mean of its divisors is an integer number (710121442).

Almost surely, 2^4123423243 is an apocalyptic number.

4123423243 is a deficient number, since it is larger than the sum of its proper divisors (137305409).

4123423243 is an equidigital number, since it uses as much as digits as its factorization.

4123423243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4290825 (or 4290794 counting only the distinct ones).

The product of its digits is 13824, while the sum is 28.

The square root of 4123423243 is about 64213.8866834893. The cubic root of 4123423243 is about 1603.5627954325.

Adding to 4123423243 its reverse (3423243214), we get a palindrome (7546666457).

The spelling of 4123423243 in words is "four billion, one hundred twenty-three million, four hundred twenty-three thousand, two hundred forty-three".