423040443423 has 32 divisors (see below), whose sum is σ = 617915020800. Its totient is φ = 255862164096.

The previous prime is 423040443403. The next prime is 423040443431. The reversal of 423040443423 is 324344040324.

It is not a de Polignac number, because 423040443423 - 2¹³ = 423040435231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423040443403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 962713 + ... + 1331501.

It is an arithmetic number, because the mean of its divisors is an integer number (19309844400).

Almost surely, 2^423040443423 is an apocalyptic number.

423040443423 is a deficient number, since it is larger than the sum of its proper divisors (194874577377).

423040443423 is a wasteful number, since it uses less digits than its factorization.

423040443423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369311.

The product of its (nonzero) digits is 110592, while the sum is 33.

Adding to 423040443423 its reverse (324344040324), we get a palindrome (747384483747).

The spelling of 423040443423 in words is "four hundred twenty-three billion, forty million, four hundred forty-three thousand, four hundred twenty-three".