11377149380021 has 2 divisors, whose sum is σ = 11377149380022. Its totient is φ = 11377149380020.

The previous prime is 11377149380017. The next prime is 11377149380057. The reversal of 11377149380021 is 12008394177311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10563475022500 + 813674357521 = 3250150^2 + 902039^2 .

It is a cyclic number.

It is not a de Polignac number, because 11377149380021 - 2² = 11377149380017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11377149380071) 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, 5688574690010 + 5688574690011.

It is an arithmetic number, because the mean of its divisors is an integer number (5688574690011).

Almost surely, 2^{11377149380021} is an apocalyptic number.

It is an amenable number.

11377149380021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11377149380021 is an equidigital number, since it uses as much as digits as its factorization.

11377149380021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 47.

The spelling of 11377149380021 in words is "eleven trillion, three hundred seventy-seven billion, one hundred forty-nine million, three hundred eighty thousand, twenty-one".