40004213123 has 8 divisors (see below), whose sum is σ = 45918749280. Its totient is φ = 34139589120.

The previous prime is 40004213071. The next prime is 40004213129. The reversal of 40004213123 is 32131240004.

40004213123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40004213123 - 2⁶ = 40004213059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40004213095 and 40004213104.

It is not an unprimeable number, because it can be changed into a prime (40004213129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12476318 + ... + 12479523.

It is an arithmetic number, because the mean of its divisors is an integer number (5739843660).

Almost surely, 2^40004213123 is an apocalyptic number.

40004213123 is a deficient number, since it is larger than the sum of its proper divisors (5914536157).

40004213123 is a wasteful number, since it uses less digits than its factorization.

40004213123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24956077.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 40004213123 its reverse (32131240004), we get a palindrome (72135453127).

The spelling of 40004213123 in words is "forty billion, four million, two hundred thirteen thousand, one hundred twenty-three".