12131001002111 has 2 divisors, whose sum is σ = 12131001002112. Its totient is φ = 12131001002110.

The previous prime is 12131001002093. The next prime is 12131001002173. The reversal of 12131001002111 is 11120010013121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12131001002111 is a prime.

It is a super-2 number, since 2×12131001002111² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12131001002611) 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 as a sum of consecutive naturals, namely, 6065500501055 + 6065500501056.

It is an arithmetic number, because the mean of its divisors is an integer number (6065500501056).

Almost surely, 2^{12131001002111} is an apocalyptic number.

12131001002111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12131001002111 is an equidigital number, since it uses as much as digits as its factorization.

12131001002111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 12131001002111 its reverse (11120010013121), we get a palindrome (23251011015232).

The spelling of 12131001002111 in words is "twelve trillion, one hundred thirty-one billion, one million, two thousand, one hundred eleven".