12113020321 has 16 divisors (see below), whose sum is σ = 12851232768. Its totient is φ = 11398942800.

The previous prime is 12113020301. The next prime is 12113020363. The reversal of 12113020321 is 12302031121.

12113020321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12113020321 - 2¹¹ = 12113018273 is a prime.

It is a super-2 number, since 2×12113020321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12113020295 and 12113020304.

It is not an unprimeable number, because it can be changed into a prime (12113020301) 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 15 ways as a sum of consecutive naturals, for example, 282576 + ... + 322606.

It is an arithmetic number, because the mean of its divisors is an integer number (803202048).

Almost surely, 2^12113020321 is an apocalyptic number.

It is an amenable number.

12113020321 is a deficient number, since it is larger than the sum of its proper divisors (738212447).

12113020321 is a wasteful number, since it uses less digits than its factorization.

12113020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40332.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12113020321 its reverse (12302031121), we get a palindrome (24415051442).

The spelling of 12113020321 in words is "twelve billion, one hundred thirteen million, twenty thousand, three hundred twenty-one".