12131311113 has 12 divisors (see below), whose sum is σ = 18172005488. Its totient is φ = 8087540580.

The previous prime is 12131311109. The next prime is 12131311123. The reversal of 12131311113 is 31111313121.

It is not a de Polignac number, because 12131311113 - 2² = 12131311109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12131311103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24961303 + ... + 24961788.

Almost surely, 2^12131311113 is an apocalyptic number.

It is an amenable number.

12131311113 is a deficient number, since it is larger than the sum of its proper divisors (6040694375).

12131311113 is an frugal number, since it uses more digits than its factorization.

12131311113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49923106 (or 49923094 counting only the distinct ones).

The product of its digits is 54, while the sum is 18.

Adding to 12131311113 its reverse (31111313121), we get a palindrome (43242624234).

The spelling of 12131311113 in words is "twelve billion, one hundred thirty-one million, three hundred eleven thousand, one hundred thirteen".