12113122311 has 12 divisors (see below), whose sum is σ = 18061143360. Its totient is φ = 7814917440.

The previous prime is 12113122309. The next prime is 12113122457. The reversal of 12113122311 is 11322131121.

12113122311 is a `hidden beast` number, since 121 + 1 + 312 + 231 + 1 = 666.

It is not a de Polignac number, because 12113122311 - 2¹ = 12113122309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113122211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21707826 + ... + 21708383.

It is an arithmetic number, because the mean of its divisors is an integer number (1505095280).

Almost surely, 2^12113122311 is an apocalyptic number.

12113122311 is a deficient number, since it is larger than the sum of its proper divisors (5948021049).

12113122311 is a wasteful number, since it uses less digits than its factorization.

12113122311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43416246 (or 43416243 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

Adding to 12113122311 its reverse (11322131121), we get a palindrome (23435253432).

The spelling of 12113122311 in words is "twelve billion, one hundred thirteen million, one hundred twenty-two thousand, three hundred eleven".