423040133423 has 4 divisors (see below), whose sum is σ = 423064865160. Its totient is φ = 423015401688.

The previous prime is 423040133419. The next prime is 423040133429. The reversal of 423040133423 is 324331040324.

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 423040133423 - 2² = 423040133419 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 (423040133429) 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, 12340193 + ... + 12374426.

It is an arithmetic number, because the mean of its divisors is an integer number (105766216290).

Almost surely, 2^423040133423 is an apocalyptic number.

423040133423 is a deficient number, since it is larger than the sum of its proper divisors (24731737).

423040133423 is a wasteful number, since it uses less digits than its factorization.

423040133423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24731736.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 423040133423 its reverse (324331040324), we get a palindrome (747371173747).

The spelling of 423040133423 in words is "four hundred twenty-three billion, forty million, one hundred thirty-three thousand, four hundred twenty-three".