4405123323423 has 24 divisors (see below), whose sum is σ = 6440494355568. Its totient is φ = 2900971539072.

The previous prime is 4405123323401. The next prime is 4405123323427. The reversal of 4405123323423 is 3243233215044.

4405123323423 is a `hidden beast` number, since 4 + 405 + 12 + 3 + 3 + 234 + 2 + 3 = 666.

It is not a de Polignac number, because 4405123323423 - 2¹⁰ = 4405123322399 is a prime.

It is a super-2 number, since 2×4405123323423² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4405123323427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5142961 + ... + 5938037.

It is an arithmetic number, because the mean of its divisors is an integer number (268353931482).

Almost surely, 2^{4405123323423} is an apocalyptic number.

4405123323423 is a deficient number, since it is larger than the sum of its proper divisors (2035371032145).

4405123323423 is a wasteful number, since it uses less digits than its factorization.

4405123323423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802583 (or 802580 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 36.

Adding to 4405123323423 its reverse (3243233215044), we get a palindrome (7648356538467).

The spelling of 4405123323423 in words is "four trillion, four hundred five billion, one hundred twenty-three million, three hundred twenty-three thousand, four hundred twenty-three".