12309291121 has 8 divisors (see below), whose sum is σ = 12527835840. Its totient is φ = 12091770768.

The previous prime is 12309291109. The next prime is 12309291157. The reversal of 12309291121 is 12119290321.

12309291121 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 12309291121 - 2¹³ = 12309282929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12309291101) 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, 231826 + ... + 279931.

It is an arithmetic number, because the mean of its divisors is an integer number (1565979480).

Almost surely, 2^12309291121 is an apocalyptic number.

It is an amenable number.

12309291121 is a deficient number, since it is larger than the sum of its proper divisors (218544719).

12309291121 is an equidigital number, since it uses as much as digits as its factorization.

12309291121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512183.

The product of its (nonzero) digits is 1944, while the sum is 31.

The spelling of 12309291121 in words is "twelve billion, three hundred nine million, two hundred ninety-one thousand, one hundred twenty-one".