12001230011131 has 2 divisors, whose sum is σ = 12001230011132. Its totient is φ = 12001230011130.

The previous prime is 12001230011077. The next prime is 12001230011149. The reversal of 12001230011131 is 13111003210021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12001230011131 - 2¹⁹ = 12001229486843 is a prime.

It is a super-2 number, since 2×12001230011131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12001230011431) 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, 6000615005565 + 6000615005566.

It is an arithmetic number, because the mean of its divisors is an integer number (6000615005566).

Almost surely, 2^{12001230011131} is an apocalyptic number.

12001230011131 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001230011131 is an equidigital number, since it uses as much as digits as its factorization.

12001230011131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 12001230011131 its reverse (13111003210021), we get a palindrome (25112233221152).

The spelling of 12001230011131 in words is "twelve trillion, one billion, two hundred thirty million, eleven thousand, one hundred thirty-one".