12112513 has 12 divisors (see below), whose sum is σ = 14475328. Its totient is φ = 9927720.

The previous prime is 12112501. The next prime is 12112531. The reversal of 12112513 is 31521121.

It is a de Polignac number, because none of the positive numbers 2^k-12112513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12112013) 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, 2068 + ... + 5338.

Almost surely, 2^12112513 is an apocalyptic number.

It is an amenable number.

12112513 is a deficient number, since it is larger than the sum of its proper divisors (2362815).

12112513 is an equidigital number, since it uses as much as digits as its factorization.

12112513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324 (or 3301 counting only the distinct ones).

The product of its digits is 60, while the sum is 16.

The square root of 12112513 is about 3480.3035787126. The cubic root of 12112513 is about 229.6561528757.

Adding to 12112513 its reverse (31521121), we get a palindrome (43633634).

The spelling of 12112513 in words is "twelve million, one hundred twelve thousand, five hundred thirteen".