12003356427 has 4 divisors (see below), whose sum is σ = 16004475240. Its totient is φ = 8002237616.

The previous prime is 12003356401. The next prime is 12003356473. The reversal of 12003356427 is 72465330021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12003356427 - 2⁸ = 12003356171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12003356327) 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 3 ways as a sum of consecutive naturals, for example, 2000559402 + ... + 2000559407.

It is an arithmetic number, because the mean of its divisors is an integer number (4001118810).

Almost surely, 2^12003356427 is an apocalyptic number.

12003356427 is a deficient number, since it is larger than the sum of its proper divisors (4001118813).

12003356427 is an equidigital number, since it uses as much as digits as its factorization.

12003356427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4001118812.

The product of its (nonzero) digits is 30240, while the sum is 33.

Adding to 12003356427 its reverse (72465330021), we get a palindrome (84468686448).

The spelling of 12003356427 in words is "twelve billion, three million, three hundred fifty-six thousand, four hundred twenty-seven".