12112313213 has 32 divisors (see below), whose sum is σ = 16283877120. Its totient is φ = 8700802560.

The previous prime is 12112313197. The next prime is 12112313233. The reversal of 12112313213 is 31231321121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12112313213 - 2⁴ = 12112313197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112313233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 802331 + ... + 817287.

It is an arithmetic number, because the mean of its divisors is an integer number (508871160).

Almost surely, 2^12112313213 is an apocalyptic number.

12112313213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12112313213 is a deficient number, since it is larger than the sum of its proper divisors (4171563907).

12112313213 is a wasteful number, since it uses less digits than its factorization.

12112313213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15797.

The product of its digits is 216, while the sum is 20.

Adding to 12112313213 its reverse (31231321121), we get a palindrome (43343634334).

The spelling of 12112313213 in words is "twelve billion, one hundred twelve million, three hundred thirteen thousand, two hundred thirteen".