423311332112021 has 4 divisors (see below), whose sum is σ = 423334679509344. Its totient is φ = 423287984714700.

The previous prime is 423311332112017. The next prime is 423311332112029. The reversal of 423311332112021 is 120211233113324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 423311332112021 - 2² = 423311332112017 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 (423311332112029) 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, 11673671465 + ... + 11673707726.

It is an arithmetic number, because the mean of its divisors is an integer number (105833669877336).

Almost surely, 2^{423311332112021} is an apocalyptic number.

It is an amenable number.

423311332112021 is a deficient number, since it is larger than the sum of its proper divisors (23347397323).

423311332112021 is a wasteful number, since it uses less digits than its factorization.

423311332112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23347397322.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 423311332112021 its reverse (120211233113324), we get a palindrome (543522565225345).

The spelling of 423311332112021 in words is "four hundred twenty-three trillion, three hundred eleven billion, three hundred thirty-two million, one hundred twelve thousand, twenty-one".