312012303233011 has 4 divisors (see below), whose sum is σ = 312012343060272. Its totient is φ = 312012263405752.

The previous prime is 312012303232999. The next prime is 312012303233039. The reversal of 312012303233011 is 110332303210213.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 312012303233011 - 2²⁹ = 312011766362099 is a prime.

It is a super-2 number, since 2×312012303233011² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312012303233051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3835060 + ... + 25273153.

It is an arithmetic number, because the mean of its divisors is an integer number (78003085765068).

Almost surely, 2^{312012303233011} is an apocalyptic number.

312012303233011 is a deficient number, since it is larger than the sum of its proper divisors (39827261).

312012303233011 is a wasteful number, since it uses less digits than its factorization.

312012303233011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39827260.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 312012303233011 its reverse (110332303210213), we get a palindrome (422344606443224).

The spelling of 312012303233011 in words is "three hundred twelve trillion, twelve billion, three hundred three million, two hundred thirty-three thousand, eleven".