12011023231213 has 2 divisors, whose sum is σ = 12011023231214. Its totient is φ = 12011023231212.

The previous prime is 12011023231159. The next prime is 12011023231261. The reversal of 12011023231213 is 31213232011021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6582929381284 + 5428093849929 = 2565722^2 + 2329827^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011023231213 - 2²⁵ = 12010989676781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011023231813) 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 as a sum of consecutive naturals, namely, 6005511615606 + 6005511615607.

It is an arithmetic number, because the mean of its divisors is an integer number (6005511615607).

Almost surely, 2^{12011023231213} is an apocalyptic number.

It is an amenable number.

12011023231213 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011023231213 is an equidigital number, since it uses as much as digits as its factorization.

12011023231213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12011023231213 its reverse (31213232011021), we get a palindrome (43224255242234).

The spelling of 12011023231213 in words is "twelve trillion, eleven billion, twenty-three million, two hundred thirty-one thousand, two hundred thirteen".