12113242187 has 2 divisors, whose sum is σ = 12113242188. Its totient is φ = 12113242186.

The previous prime is 12113242111. The next prime is 12113242217. The reversal of 12113242187 is 78124231121.

It is a strong prime.

It is an emirp because it is prime and its reverse (78124231121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12113242187 - 2¹² = 12113238091 is a prime.

It is not a weakly prime, because it can be changed into another prime (12115242187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056621093 + 6056621094.

It is an arithmetic number, because the mean of its divisors is an integer number (6056621094).

Almost surely, 2^12113242187 is an apocalyptic number.

12113242187 is a deficient number, since it is larger than the sum of its proper divisors (1).

12113242187 is an equidigital number, since it uses as much as digits as its factorization.

12113242187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 32.

The spelling of 12113242187 in words is "twelve billion, one hundred thirteen million, two hundred forty-two thousand, one hundred eighty-seven".