12112313 has 4 divisors (see below), whose sum is σ = 12824820. Its totient is φ = 11399808.

The previous prime is 12112297. The next prime is 12112319. The reversal of 12112313 is 31321121.

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 10738729 + 1373584 = 3277^2 + 1172^2 .

It is a cyclic number.

It is not a de Polignac number, because 12112313 - 2⁴ = 12112297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12112319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356228 + ... + 356261.

It is an arithmetic number, because the mean of its divisors is an integer number (3206205).

Almost surely, 2^12112313 is an apocalyptic number.

It is an amenable number.

12112313 is a deficient number, since it is larger than the sum of its proper divisors (712507).

12112313 is an equidigital number, since it uses as much as digits as its factorization.

12112313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712506.

The product of its digits is 36, while the sum is 14.

The square root of 12112313 is about 3480.2748454684. The cubic root of 12112313 is about 229.6548888527.

Adding to 12112313 its reverse (31321121), we get a palindrome (43433434).

The spelling of 12112313 in words is "twelve million, one hundred twelve thousand, three hundred thirteen".