423313312423 has 4 divisors (see below), whose sum is σ = 424922869008. Its totient is φ = 421703755840.

The previous prime is 423313312397. The next prime is 423313312567. The reversal of 423313312423 is 324213313324.

It is a happy number.

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 423313312423 - 2²⁵ = 423279757991 is a prime.

It is a super-2 number, since 2×423313312423² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423313322423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 804777898 + ... + 804778423.

It is an arithmetic number, because the mean of its divisors is an integer number (106230717252).

Almost surely, 2^423313312423 is an apocalyptic number.

423313312423 is a deficient number, since it is larger than the sum of its proper divisors (1609556585).

423313312423 is a wasteful number, since it uses less digits than its factorization.

423313312423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609556584.

The product of its digits is 31104, while the sum is 31.

Adding to 423313312423 its reverse (324213313324), we get a palindrome (747526625747).

Subtracting from 423313312423 its reverse (324213313324), we obtain a palindrome (99099999099).

The spelling of 423313312423 in words is "four hundred twenty-three billion, three hundred thirteen million, three hundred twelve thousand, four hundred twenty-three".