12310312211 has 4 divisors (see below), whose sum is σ = 12958223400. Its totient is φ = 11662401024.

The previous prime is 12310312207. The next prime is 12310312213. The reversal of 12310312211 is 11221301321.

12310312211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12310312211 - 2² = 12310312207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12310312211.

It is not an unprimeable number, because it can be changed into a prime (12310312213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323955566 + ... + 323955603.

It is an arithmetic number, because the mean of its divisors is an integer number (3239555850).

Almost surely, 2^12310312211 is an apocalyptic number.

12310312211 is a deficient number, since it is larger than the sum of its proper divisors (647911189).

12310312211 is an equidigital number, since it uses as much as digits as its factorization.

12310312211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647911188.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12310312211 its reverse (11221301321), we get a palindrome (23531613532).

The spelling of 12310312211 in words is "twelve billion, three hundred ten million, three hundred twelve thousand, two hundred eleven".