4235123423 has 16 divisors (see below), whose sum is σ = 4519120896. Its totient is φ = 3959672640.

The previous prime is 4235123401. The next prime is 4235123441. The reversal of 4235123423 is 3243215324.

It is a happy number.

It is not a de Polignac number, because 4235123423 - 2¹² = 4235119327 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 (4235123323) 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 15 ways as a sum of consecutive naturals, for example, 1028138 + ... + 1032248.

It is an arithmetic number, because the mean of its divisors is an integer number (282445056).

Almost surely, 2^4235123423 is an apocalyptic number.

4235123423 is a deficient number, since it is larger than the sum of its proper divisors (283997473).

4235123423 is a wasteful number, since it uses less digits than its factorization.

4235123423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5134.

The product of its digits is 17280, while the sum is 29.

The square root of 4235123423 is about 65077.8258933102. The cubic root of 4235123423 is about 1617.9137172385.

Adding to 4235123423 its reverse (3243215324), we get a palindrome (7478338747).

The spelling of 4235123423 in words is "four billion, two hundred thirty-five million, one hundred twenty-three thousand, four hundred twenty-three".