4023123412 has 24 divisors (see below), whose sum is σ = 8777724480. Its totient is φ = 1567450560.

The previous prime is 4023123371. The next prime is 4023123413. The reversal of 4023123412 is 2143213204.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4023123413) 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 7 ways as a sum of consecutive naturals, for example, 6530737 + ... + 6531352.

It is an arithmetic number, because the mean of its divisors is an integer number (365738520).

Almost surely, 2^4023123412 is an apocalyptic number.

It is an amenable number.

4023123412 is an abundant number, since it is smaller than the sum of its proper divisors (4754601068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4023123412 is a wasteful number, since it uses less digits than its factorization.

4023123412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13062111 (or 13062109 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 4023123412 is about 63428.0963926871. The cubic root of 4023123412 is about 1590.4540206273.

Adding to 4023123412 its reverse (2143213204), we get a palindrome (6166336616).

The spelling of 4023123412 in words is "four billion, twenty-three million, one hundred twenty-three thousand, four hundred twelve".