423403320343 has 4 divisors (see below), whose sum is σ = 423405818200. Its totient is φ = 423400822488.

The previous prime is 423403320331. The next prime is 423403320359. The reversal of 423403320343 is 343023304324.

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 423403320343 - 2⁵ = 423403320311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423403360343) 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, 974580 + ... + 1340377.

It is an arithmetic number, because the mean of its divisors is an integer number (105851454550).

Almost surely, 2^423403320343 is an apocalyptic number.

423403320343 is a deficient number, since it is larger than the sum of its proper divisors (2497857).

423403320343 is a wasteful number, since it uses less digits than its factorization.

423403320343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497856.

The product of its (nonzero) digits is 62208, while the sum is 31.

Adding to 423403320343 its reverse (343023304324), we get a palindrome (766426624667).

The spelling of 423403320343 in words is "four hundred twenty-three billion, four hundred three million, three hundred twenty thousand, three hundred forty-three".