12011023231279 has 2 divisors, whose sum is σ = 12011023231280. Its totient is φ = 12011023231278.

The previous prime is 12011023231261. The next prime is 12011023231301. The reversal of 12011023231279 is 97213232011021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12011023231279 - 2²¹ = 12011021134127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011023232279) 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, 6005511615639 + 6005511615640.

It is an arithmetic number, because the mean of its divisors is an integer number (6005511615640).

Almost surely, 2^{12011023231279} is an apocalyptic number.

12011023231279 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011023231279 is an equidigital number, since it uses as much as digits as its factorization.

12011023231279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 12011023231279 in words is "twelve trillion, eleven billion, twenty-three million, two hundred thirty-one thousand, two hundred seventy-nine".