12089307921 has 16 divisors (see below), whose sum is σ = 16167543168. Its totient is φ = 8035344000.

The previous prime is 12089307809. The next prime is 12089307941. The reversal of 12089307921 is 12970398021.

It is not a de Polignac number, because 12089307921 - 2⁷ = 12089307793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12089307941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1476180 + ... + 1484346.

It is an arithmetic number, because the mean of its divisors is an integer number (1010471448).

Almost surely, 2^12089307921 is an apocalyptic number.

It is an amenable number.

12089307921 is a deficient number, since it is larger than the sum of its proper divisors (4078235247).

12089307921 is an equidigital number, since it uses as much as digits as its factorization.

12089307921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9592.

The product of its (nonzero) digits is 54432, while the sum is 42.

The spelling of 12089307921 in words is "twelve billion, eighty-nine million, three hundred seven thousand, nine hundred twenty-one".