12031203211 has 8 divisors (see below), whose sum is σ = 12144603744. Its totient is φ = 11918295360.

The previous prime is 12031203203. The next prime is 12031203271. The reversal of 12031203211 is 11230213021.

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 12031203211 - 2³ = 12031203203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12031203271) 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 7 ways as a sum of consecutive naturals, for example, 74010 + ... + 171871.

It is an arithmetic number, because the mean of its divisors is an integer number (1518075468).

Almost surely, 2^12031203211 is an apocalyptic number.

12031203211 is a deficient number, since it is larger than the sum of its proper divisors (113400533).

12031203211 is a wasteful number, since it uses less digits than its factorization.

12031203211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246341.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12031203211 its reverse (11230213021), we get a palindrome (23261416232).

The spelling of 12031203211 in words is "twelve billion, thirty-one million, two hundred three thousand, two hundred eleven".