11821310395 has 8 divisors (see below), whose sum is σ = 14198510304. Its totient is φ = 9448423104.

The previous prime is 11821310381. The next prime is 11821310399. The reversal of 11821310395 is 59301312811.

11821310395 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11821310395 - 2²⁷ = 11687092667 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11821310395.

It is not an unprimeable number, because it can be changed into a prime (11821310399) 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 in 7 ways as a sum of consecutive naturals, for example, 1072119 + ... + 1083088.

It is an arithmetic number, because the mean of its divisors is an integer number (1774813788).

Almost surely, 2^11821310395 is an apocalyptic number.

11821310395 is a deficient number, since it is larger than the sum of its proper divisors (2377199909).

11821310395 is a wasteful number, since it uses less digits than its factorization.

11821310395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156309.

The product of its (nonzero) digits is 6480, while the sum is 34.

The spelling of 11821310395 in words is "eleven billion, eight hundred twenty-one million, three hundred ten thousand, three hundred ninety-five".