12112321011 has 16 divisors (see below), whose sum is σ = 18550566144. Its totient is φ = 6886190304.

The previous prime is 12112321003. The next prime is 12112321051. The reversal of 12112321011 is 11012321121.

It is not a de Polignac number, because 12112321011 - 2³ = 12112321003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12112321051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1459765 + ... + 1468038.

It is an arithmetic number, because the mean of its divisors is an integer number (1159410384).

Almost surely, 2^12112321011 is an apocalyptic number.

12112321011 is a deficient number, since it is larger than the sum of its proper divisors (6438245133).

12112321011 is a wasteful number, since it uses less digits than its factorization.

12112321011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928010.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 12112321011 its reverse (11012321121), we get a palindrome (23124642132).

The spelling of 12112321011 in words is "twelve billion, one hundred twelve million, three hundred twenty-one thousand, eleven".