12012223010311 has 4 divisors (see below), whose sum is σ = 12012230190312. Its totient is φ = 12012215830312.

The previous prime is 12012223010287. The next prime is 12012223010369. The reversal of 12012223010311 is 11301032221021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12012223010311 - 2⁵ = 12012223010279 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 (12010223010311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391176 + ... + 4917058.

It is an arithmetic number, because the mean of its divisors is an integer number (3003057547578).

Almost surely, 2^{12012223010311} is an apocalyptic number.

12012223010311 is a deficient number, since it is larger than the sum of its proper divisors (7180001).

12012223010311 is an equidigital number, since it uses as much as digits as its factorization.

12012223010311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7180000.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12012223010311 its reverse (11301032221021), we get a palindrome (23313255231332).

The spelling of 12012223010311 in words is "twelve trillion, twelve billion, two hundred twenty-three million, ten thousand, three hundred eleven".