12311004113 has 4 divisors (see below), whose sum is σ = 12611272548. Its totient is φ = 12010735680.

The previous prime is 12311004109. The next prime is 12311004119. The reversal of 12311004113 is 31140011321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5111821009 + 7199183104 = 71497^2 + 84848^2 .

It is a cyclic number.

It is not a de Polignac number, because 12311004113 - 2² = 12311004109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12311004091 and 12311004100.

It is not an unprimeable number, because it can be changed into a prime (12311004119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150134156 + ... + 150134237.

It is an arithmetic number, because the mean of its divisors is an integer number (3152818137).

Almost surely, 2^12311004113 is an apocalyptic number.

It is an amenable number.

12311004113 is a deficient number, since it is larger than the sum of its proper divisors (300268435).

12311004113 is an equidigital number, since it uses as much as digits as its factorization.

12311004113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300268434.

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

Adding to 12311004113 its reverse (31140011321), we get a palindrome (43451015434).

The spelling of 12311004113 in words is "twelve billion, three hundred eleven million, four thousand, one hundred thirteen".