12311323113 has 16 divisors (see below), whose sum is σ = 16447021056. Its totient is φ = 8191606800.

The previous prime is 12311323111. The next prime is 12311323151. The reversal of 12311323113 is 31132311321.

It is a happy number.

It is not a de Polignac number, because 12311323113 - 2¹ = 12311323111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12311323113.

It is not an unprimeable number, because it can be changed into a prime (12311323111) 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, 6309288 + ... + 6311238.

It is an arithmetic number, because the mean of its divisors is an integer number (1027938816).

Almost surely, 2^12311323113 is an apocalyptic number.

It is an amenable number.

12311323113 is a deficient number, since it is larger than the sum of its proper divisors (4135697943).

12311323113 is a wasteful number, since it uses less digits than its factorization.

12311323113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4964.

The product of its digits is 324, while the sum is 21.

Adding to 12311323113 its reverse (31132311321), we get a palindrome (43443634434).

The spelling of 12311323113 in words is "twelve billion, three hundred eleven million, three hundred twenty-three thousand, one hundred thirteen".