12320121005 has 8 divisors (see below), whose sum is σ = 15426934272. Its totient is φ = 9427570768.

The previous prime is 12320120993. The next prime is 12320121031. The reversal of 12320121005 is 50012102321.

It is a happy number.

12320121005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12320121005 - 2¹⁶ = 12320055469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53565629 + ... + 53565858.

It is an arithmetic number, because the mean of its divisors is an integer number (1928366784).

Almost surely, 2^12320121005 is an apocalyptic number.

It is an amenable number.

12320121005 is a deficient number, since it is larger than the sum of its proper divisors (3106813267).

12320121005 is a wasteful number, since it uses less digits than its factorization.

12320121005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107131515.

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 12320121005 its reverse (50012102321), we get a palindrome (62332223326).

The spelling of 12320121005 in words is "twelve billion, three hundred twenty million, one hundred twenty-one thousand, five".