11213817529 has 2 divisors, whose sum is σ = 11213817530. Its totient is φ = 11213817528.

The previous prime is 11213817523. The next prime is 11213817553. The reversal of 11213817529 is 92571831211.

11213817529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9766775929 + 1447041600 = 98827^2 + 38040^2 .

It is a cyclic number.

It is not a de Polignac number, because 11213817529 - 2⁵ = 11213817497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11213817491 and 11213817500.

It is not a weakly prime, because it can be changed into another prime (11213817523) 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, 5606908764 + 5606908765.

It is an arithmetic number, because the mean of its divisors is an integer number (5606908765).

Almost surely, 2^11213817529 is an apocalyptic number.

It is an amenable number.

11213817529 is a deficient number, since it is larger than the sum of its proper divisors (1).

11213817529 is an equidigital number, since it uses as much as digits as its factorization.

11213817529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 40.

The spelling of 11213817529 in words is "eleven billion, two hundred thirteen million, eight hundred seventeen thousand, five hundred twenty-nine".