12230031211 has 4 divisors (see below), whose sum is σ = 12231665712. Its totient is φ = 12228396712.

The previous prime is 12230031161. The next prime is 12230031221. The reversal of 12230031211 is 11213003221.

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 12230031211 - 2⁹ = 12230030699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12230031221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 805975 + ... + 821008.

It is an arithmetic number, because the mean of its divisors is an integer number (3057916428).

Almost surely, 2^12230031211 is an apocalyptic number.

12230031211 is a deficient number, since it is larger than the sum of its proper divisors (1634501).

12230031211 is an equidigital number, since it uses as much as digits as its factorization.

12230031211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634500.

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

Adding to 12230031211 its reverse (11213003221), we get a palindrome (23443034432).

The spelling of 12230031211 in words is "twelve billion, two hundred thirty million, thirty-one thousand, two hundred eleven".