11363987213 has 2 divisors, whose sum is σ = 11363987214. Its totient is φ = 11363987212.

The previous prime is 11363987197. The next prime is 11363987221. The reversal of 11363987213 is 31278936311.

11363987213 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., 5753677609 + 5610309604 = 75853^2 + 74902^2 .

It is a cyclic number.

It is not a de Polignac number, because 11363987213 - 2⁴ = 11363987197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11363987273) 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, 5681993606 + 5681993607.

It is an arithmetic number, because the mean of its divisors is an integer number (5681993607).

Almost surely, 2^11363987213 is an apocalyptic number.

It is an amenable number.

11363987213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11363987213 is an equidigital number, since it uses as much as digits as its factorization.

11363987213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 44.

The spelling of 11363987213 in words is "eleven billion, three hundred sixty-three million, nine hundred eighty-seven thousand, two hundred thirteen".