12133120009 has 4 divisors (see below), whose sum is σ = 12133756180. Its totient is φ = 12132483840.

The previous prime is 12133119937. The next prime is 12133120019. The reversal of 12133120009 is 90002133121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90002133121 = 8389 ⋅10728589.

It can be written as a sum of positive squares in 2 ways, for example, as 9506250000 + 2626870009 = 97500^2 + 51253^2 .

It is a cyclic number.

It is not a de Polignac number, because 12133120009 - 2⁷ = 12133119881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12133120019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288564 + ... + 327925.

It is an arithmetic number, because the mean of its divisors is an integer number (3033439045).

Almost surely, 2^12133120009 is an apocalyptic number.

It is an amenable number.

12133120009 is a deficient number, since it is larger than the sum of its proper divisors (636171).

12133120009 is an equidigital number, since it uses as much as digits as its factorization.

12133120009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636170.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 12133120009 in words is "twelve billion, one hundred thirty-three million, one hundred twenty thousand, nine".