404142104323 has 4 divisors (see below), whose sum is σ = 404157501328. Its totient is φ = 404126707320.

The previous prime is 404142104293. The next prime is 404142104441. The reversal of 404142104323 is 323401241404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 404142104323 - 2²¹ = 404140007171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404142104291 and 404142104300.

It is not an unprimeable number, because it can be changed into a prime (404142101323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7659063 + ... + 7711648.

It is an arithmetic number, because the mean of its divisors is an integer number (101039375332).

Almost surely, 2^404142104323 is an apocalyptic number.

404142104323 is a deficient number, since it is larger than the sum of its proper divisors (15397005).

404142104323 is a wasteful number, since it uses less digits than its factorization.

404142104323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15397004.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 404142104323 its reverse (323401241404), we get a palindrome (727543345727).

The spelling of 404142104323 in words is "four hundred four billion, one hundred forty-two million, one hundred four thousand, three hundred twenty-three".