11874020755021 has 2 divisors, whose sum is σ = 11874020755022. Its totient is φ = 11874020755020.

The previous prime is 11874020755013. The next prime is 11874020755039. The reversal of 11874020755021 is 12055702047811.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11738880702025 + 135140052996 = 3426205^2 + 367614^2 .

It is an emirp because it is prime and its reverse (12055702047811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11874020755021 - 2³ = 11874020755013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11874020755001) 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, 5937010377510 + 5937010377511.

It is an arithmetic number, because the mean of its divisors is an integer number (5937010377511).

Almost surely, 2^{11874020755021} is an apocalyptic number.

It is an amenable number.

11874020755021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11874020755021 is an equidigital number, since it uses as much as digits as its factorization.

11874020755021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 156800, while the sum is 43.

The spelling of 11874020755021 in words is "eleven trillion, eight hundred seventy-four billion, twenty million, seven hundred fifty-five thousand, twenty-one".