12133051209 has 16 divisors (see below), whose sum is σ = 17976738240. Its totient is φ = 8087869440.

The previous prime is 12133051201. The next prime is 12133051237. The reversal of 12133051209 is 90215033121.

12133051209 is a `hidden beast` number, since 12 + 133 + 0 + 512 + 0 + 9 = 666.

It is not a de Polignac number, because 12133051209 - 2³ = 12133051201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12133051201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360009 + ... + 392265.

It is an arithmetic number, because the mean of its divisors is an integer number (1123546140).

Almost surely, 2^12133051209 is an apocalyptic number.

It is an amenable number.

12133051209 is a deficient number, since it is larger than the sum of its proper divisors (5843687031).

12133051209 is a wasteful number, since it uses less digits than its factorization.

12133051209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46197 (or 46191 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The spelling of 12133051209 in words is "twelve billion, one hundred thirty-three million, fifty-one thousand, two hundred nine".