11787188114321 has 2 divisors, whose sum is σ = 11787188114322. Its totient is φ = 11787188114320.

The previous prime is 11787188114287. The next prime is 11787188114431. The reversal of 11787188114321 is 12341188178711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10775626890625 + 1011561223696 = 3282625^2 + 1005764^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11787188114321 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11787188119321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5893594057160 + 5893594057161.

It is an arithmetic number, because the mean of its divisors is an integer number (5893594057161).

Almost surely, 2^{11787188114321} is an apocalyptic number.

It is an amenable number.

11787188114321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11787188114321 is an equidigital number, since it uses as much as digits as its factorization.

11787188114321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 602112, while the sum is 53.

The spelling of 11787188114321 in words is "eleven trillion, seven hundred eighty-seven billion, one hundred eighty-eight million, one hundred fourteen thousand, three hundred twenty-one".