12091209233 has 2 divisors, whose sum is σ = 12091209234. Its totient is φ = 12091209232.

The previous prime is 12091209167. The next prime is 12091209283. The reversal of 12091209233 is 33290219021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10247107984 + 1844101249 = 101228^2 + 42943^2 .

It is a cyclic number.

It is not a de Polignac number, because 12091209233 - 2¹⁰ = 12091208209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12091209233.

It is not a weakly prime, because it can be changed into another prime (12091209283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6045604616 + 6045604617.

It is an arithmetic number, because the mean of its divisors is an integer number (6045604617).

Almost surely, 2^12091209233 is an apocalyptic number.

It is an amenable number.

12091209233 is a deficient number, since it is larger than the sum of its proper divisors (1).

12091209233 is an equidigital number, since it uses as much as digits as its factorization.

12091209233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 32.

The spelling of 12091209233 in words is "twelve billion, ninety-one million, two hundred nine thousand, two hundred thirty-three".