11808103521 has 16 divisors (see below), whose sum is σ = 16259018048. Its totient is φ = 7616980800.

The previous prime is 11808103519. The next prime is 11808103543. The reversal of 11808103521 is 12530180811.

It is not a de Polignac number, because 11808103521 - 2¹ = 11808103519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11808101521) 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, 273775 + ... + 313956.

It is an arithmetic number, because the mean of its divisors is an integer number (1016188628).

Almost surely, 2^11808103521 is an apocalyptic number.

It is an amenable number.

11808103521 is a deficient number, since it is larger than the sum of its proper divisors (4450914527).

11808103521 is a wasteful number, since it uses less digits than its factorization.

11808103521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587952.

The product of its (nonzero) digits is 1920, while the sum is 30.

The spelling of 11808103521 in words is "eleven billion, eight hundred eight million, one hundred three thousand, five hundred twenty-one".