11936383021 has 2 divisors, whose sum is σ = 11936383022. Its totient is φ = 11936383020.

The previous prime is 11936382973. The next prime is 11936383027. The reversal of 11936383021 is 12038363911.

11936383021 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., 11446646121 + 489736900 = 106989^2 + 22130^2 .

It is a cyclic number.

It is not a de Polignac number, because 11936383021 - 2⁹ = 11936382509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11936383027) 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, 5968191510 + 5968191511.

It is an arithmetic number, because the mean of its divisors is an integer number (5968191511).

Almost surely, 2^11936383021 is an apocalyptic number.

It is an amenable number.

11936383021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11936383021 is an equidigital number, since it uses as much as digits as its factorization.

11936383021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 11936383021 in words is "eleven billion, nine hundred thirty-six million, three hundred eighty-three thousand, twenty-one".