312001443211223 has 16 divisors (see below), whose sum is σ = 323475923377152. Its totient is φ = 300615304536000.

The previous prime is 312001443211207. The next prime is 312001443211279. The reversal of 312001443211223 is 322112344100213.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 312001443211223 - 2⁴ = 312001443211207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312001443211723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82891928 + ... + 86574098.

It is an arithmetic number, because the mean of its divisors is an integer number (20217245211072).

Almost surely, 2^{312001443211223} is an apocalyptic number.

312001443211223 is a deficient number, since it is larger than the sum of its proper divisors (11474480165929).

312001443211223 is a wasteful number, since it uses less digits than its factorization.

312001443211223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3694166.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 312001443211223 its reverse (322112344100213), we get a palindrome (634113787311436).

The spelling of 312001443211223 in words is "three hundred twelve trillion, one billion, four hundred forty-three million, two hundred eleven thousand, two hundred twenty-three".