4001224123 has 16 divisors (see below), whose sum is σ = 4343673600. Its totient is φ = 3663799200.

The previous prime is 4001224111. The next prime is 4001224169. The reversal of 4001224123 is 3214221004.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4001224123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4001224123.

It is not an unprimeable number, because it can be changed into a prime (4001224223) 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, 2470608 + ... + 2472226.

It is an arithmetic number, because the mean of its divisors is an integer number (271479600).

Almost surely, 2^4001224123 is an apocalyptic number.

4001224123 is a deficient number, since it is larger than the sum of its proper divisors (342449477).

4001224123 is a wasteful number, since it uses less digits than its factorization.

4001224123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3042.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 4001224123 is about 63255.2300051150. The cubic root of 4001224123 is about 1587.5629666305.

Adding to 4001224123 its reverse (3214221004), we get a palindrome (7215445127).

The spelling of 4001224123 in words is "four billion, one million, two hundred twenty-four thousand, one hundred twenty-three".