12320021344009 has 4 divisors (see below), whose sum is σ = 12328465499920. Its totient is φ = 12311577188100.

The previous prime is 12320021343991. The next prime is 12320021344031. The reversal of 12320021344009 is 90044312002321.

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 12320021344009 - 2¹⁹ = 12320020819721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12320021374009) 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, 4222075767 + ... + 4222078684.

It is an arithmetic number, because the mean of its divisors is an integer number (3082116374980).

Almost surely, 2^{12320021344009} is an apocalyptic number.

It is an amenable number.

12320021344009 is a deficient number, since it is larger than the sum of its proper divisors (8444155911).

12320021344009 is an equidigital number, since it uses as much as digits as its factorization.

12320021344009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8444155910.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 12320021344009 in words is "twelve trillion, three hundred twenty billion, twenty-one million, three hundred forty-four thousand, nine".