12111310323223 has 4 divisors (see below), whose sum is σ = 12111334803720. Its totient is φ = 12111285842728.

The previous prime is 12111310323209. The next prime is 12111310323251. The reversal of 12111310323223 is 32232301311121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12111310323223 - 2¹³ = 12111310315031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111310326223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11482513 + ... + 12492826.

It is an arithmetic number, because the mean of its divisors is an integer number (3027833700930).

Almost surely, 2^{12111310323223} is an apocalyptic number.

12111310323223 is a deficient number, since it is larger than the sum of its proper divisors (24480497).

12111310323223 is an equidigital number, since it uses as much as digits as its factorization.

12111310323223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24480496.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 12111310323223 its reverse (32232301311121), we get a palindrome (44343611634344).

The spelling of 12111310323223 in words is "twelve trillion, one hundred eleven billion, three hundred ten million, three hundred twenty-three thousand, two hundred twenty-three".