11346317821 has 2 divisors, whose sum is σ = 11346317822. Its totient is φ = 11346317820.

The previous prime is 11346317791. The next prime is 11346317839. The reversal of 11346317821 is 12871364311.

11346317821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7125216921 + 4221100900 = 84411^2 + 64970^2 .

It is a cyclic number.

It is not a de Polignac number, because 11346317821 - 2²⁷ = 11212100093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11346317861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5673158910 + 5673158911.

It is an arithmetic number, because the mean of its divisors is an integer number (5673158911).

Almost surely, 2^11346317821 is an apocalyptic number.

It is an amenable number.

11346317821 is a deficient number, since it is larger than the sum of its proper divisors (1).

11346317821 is an equidigital number, since it uses as much as digits as its factorization.

11346317821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The spelling of 11346317821 in words is "eleven billion, three hundred forty-six million, three hundred seventeen thousand, eight hundred twenty-one".