12089327921 has 32 divisors (see below), whose sum is σ = 13681958400. Its totient is φ = 10676033280.

The previous prime is 12089327879. The next prime is 12089327947. The reversal of 12089327921 is 12972398021.

It is a de Polignac number, because none of the positive numbers 2^k-12089327921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12089327221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9320345 + ... + 9321641.

It is an arithmetic number, because the mean of its divisors is an integer number (427561200).

Almost surely, 2^12089327921 is an apocalyptic number.

12089327921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12089327921 is a deficient number, since it is larger than the sum of its proper divisors (1592630479).

12089327921 is a wasteful number, since it uses less digits than its factorization.

12089327921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526 (or 1504 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 12089327921 in words is "twelve billion, eighty-nine million, three hundred twenty-seven thousand, nine hundred twenty-one".