12331240211 has 4 divisors (see below), whose sum is σ = 12593607072. Its totient is φ = 12068873352.

The previous prime is 12331240153. The next prime is 12331240223. The reversal of 12331240211 is 11204213321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11204213321 = 7 ⋅1600601903.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12331240211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12331245211) 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, 131183360 + ... + 131183453.

It is an arithmetic number, because the mean of its divisors is an integer number (3148401768).

Almost surely, 2^12331240211 is an apocalyptic number.

12331240211 is a deficient number, since it is larger than the sum of its proper divisors (262366861).

12331240211 is an equidigital number, since it uses as much as digits as its factorization.

12331240211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262366860.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12331240211 its reverse (11204213321), we get a palindrome (23535453532).

The spelling of 12331240211 in words is "twelve billion, three hundred thirty-one million, two hundred forty thousand, two hundred eleven".