12012134399 has 8 divisors (see below), whose sum is σ = 12966622560. Its totient is φ = 11093664736.

The previous prime is 12012134383. The next prime is 12012134401. The reversal of 12012134399 is 99343121021.

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 12012134399 - 2⁴ = 12012134383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012134339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9003932 + ... + 9005265.

It is an arithmetic number, because the mean of its divisors is an integer number (1620827820).

Almost surely, 2^12012134399 is an apocalyptic number.

12012134399 is a deficient number, since it is larger than the sum of its proper divisors (954488161).

12012134399 is a wasteful number, since it uses less digits than its factorization.

12012134399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18009249.

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 12012134399 in words is "twelve billion, twelve million, one hundred thirty-four thousand, three hundred ninety-nine".