12320311121 has 8 divisors (see below), whose sum is σ = 12723180288. Its totient is φ = 11917782000.

The previous prime is 12320311103. The next prime is 12320311127. The reversal of 12320311121 is 12111302321.

12320311121 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 12320311121 - 2¹⁰ = 12320310097 is a prime.

It is a super-2 number, since 2×12320311121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12320311121.

It is not an unprimeable number, because it can be changed into a prime (12320311127) 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 7 ways as a sum of consecutive naturals, for example, 10310 + ... + 157311.

It is an arithmetic number, because the mean of its divisors is an integer number (1590397536).

Almost surely, 2^12320311121 is an apocalyptic number.

It is an amenable number.

12320311121 is a deficient number, since it is larger than the sum of its proper divisors (402869167).

12320311121 is a wasteful number, since it uses less digits than its factorization.

12320311121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170023.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12320311121 its reverse (12111302321), we get a palindrome (24431613442).

The spelling of 12320311121 in words is "twelve billion, three hundred twenty million, three hundred eleven thousand, one hundred twenty-one".