12111213313 has 4 divisors (see below), whose sum is σ = 12117237808. Its totient is φ = 12105188820.

The previous prime is 12111213281. The next prime is 12111213319. The reversal of 12111213313 is 31331211121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12111213313 - 2⁵ = 12111213281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111213319) 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, 3009231 + ... + 3013252.

It is an arithmetic number, because the mean of its divisors is an integer number (3029309452).

Almost surely, 2^12111213313 is an apocalyptic number.

It is an amenable number.

12111213313 is a deficient number, since it is larger than the sum of its proper divisors (6024495).

12111213313 is an equidigital number, since it uses as much as digits as its factorization.

12111213313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6024494.

The product of its digits is 108, while the sum is 19.

Adding to 12111213313 its reverse (31331211121), we get a palindrome (43442424434).

The spelling of 12111213313 in words is "twelve billion, one hundred eleven million, two hundred thirteen thousand, three hundred thirteen".