12344328021 has 8 divisors (see below), whose sum is σ = 16475260320. Its totient is φ = 8221473872.

The previous prime is 12344327993. The next prime is 12344328023. The reversal of 12344328021 is 12082344321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12344328021 - 2²⁵ = 12310773589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12344328021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12344328023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2015970 + ... + 2022083.

It is an arithmetic number, because the mean of its divisors is an integer number (2059407540).

Almost surely, 2^12344328021 is an apocalyptic number.

It is an amenable number.

12344328021 is a deficient number, since it is larger than the sum of its proper divisors (4130932299).

12344328021 is a wasteful number, since it uses less digits than its factorization.

12344328021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039075.

The product of its (nonzero) digits is 9216, while the sum is 30.

The spelling of 12344328021 in words is "twelve billion, three hundred forty-four million, three hundred twenty-eight thousand, twenty-one".