12011313130021 has 2 divisors, whose sum is σ = 12011313130022. Its totient is φ = 12011313130020.

The previous prime is 12011313130013. The next prime is 12011313130079. The reversal of 12011313130021 is 12003131311021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10640741860225 + 1370571269796 = 3262015^2 + 1170714^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011313130021 - 2³ = 12011313130013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011313130321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005656565010 + 6005656565011.

It is an arithmetic number, because the mean of its divisors is an integer number (6005656565011).

Almost surely, 2^{12011313130021} is an apocalyptic number.

It is an amenable number.

12011313130021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011313130021 is an equidigital number, since it uses as much as digits as its factorization.

12011313130021 is an odious number, because the sum of its binary digits is odd.

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

Adding to 12011313130021 its reverse (12003131311021), we get a palindrome (24014444441042).

The spelling of 12011313130021 in words is "twelve trillion, eleven billion, three hundred thirteen million, one hundred thirty thousand, twenty-one".