11385326813 has 16 divisors (see below), whose sum is σ = 13884270720. Its totient is φ = 9118573056.

The previous prime is 11385326809. The next prime is 11385326873. The reversal of 11385326813 is 31862358311.

It is a cyclic number.

It is not a de Polignac number, because 11385326813 - 2² = 11385326809 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11385326873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 576620 + ... + 596037.

It is an arithmetic number, because the mean of its divisors is an integer number (867766920).

Almost surely, 2^11385326813 is an apocalyptic number.

It is an amenable number.

11385326813 is a deficient number, since it is larger than the sum of its proper divisors (2498943907).

11385326813 is a wasteful number, since it uses less digits than its factorization.

11385326813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172756.

The product of its digits is 103680, while the sum is 41.

The spelling of 11385326813 in words is "eleven billion, three hundred eighty-five million, three hundred twenty-six thousand, eight hundred thirteen".