11331321099 has 24 divisors (see below), whose sum is σ = 18500120640. Its totient is φ = 6134247504.

The previous prime is 11331321031. The next prime is 11331321109. The reversal of 11331321099 is 99012313311.

11331321099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11331321099 - 2⁷ = 11331320971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11331321019) 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 23 ways as a sum of consecutive naturals, for example, 2025729 + ... + 2031314.

It is an arithmetic number, because the mean of its divisors is an integer number (770838360).

Almost surely, 2^11331321099 is an apocalyptic number.

11331321099 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11331321099 is a deficient number, since it is larger than the sum of its proper divisors (7168799541).

11331321099 is a wasteful number, since it uses less digits than its factorization.

11331321099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4057079 (or 4057072 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 33.

The spelling of 11331321099 in words is "eleven billion, three hundred thirty-one million, three hundred twenty-one thousand, ninety-nine".