12120320101 has 4 divisors (see below), whose sum is σ = 12120784812. Its totient is φ = 12119855392.

The previous prime is 12120320063. The next prime is 12120320111. The reversal of 12120320101 is 10102302121.

12120320101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9923148225 + 2197171876 = 99615^2 + 46874^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120320101 - 2¹¹ = 12120318053 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 (12120320111) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 190750 + ... + 246223.

It is an arithmetic number, because the mean of its divisors is an integer number (3030196203).

Almost surely, 2^12120320101 is an apocalyptic number.

It is an amenable number.

12120320101 is a deficient number, since it is larger than the sum of its proper divisors (464711).

12120320101 is an equidigital number, since it uses as much as digits as its factorization.

12120320101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464710.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12120320101 its reverse (10102302121), we get a palindrome (22222622222).

The spelling of 12120320101 in words is "twelve billion, one hundred twenty million, three hundred twenty thousand, one hundred one".