2012311031233 has 4 divisors (see below), whose sum is σ = 2118222138160. Its totient is φ = 1906399924308.

The previous prime is 2012311031231. The next prime is 2012311031243. The reversal of 2012311031233 is 3321301132102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2012311031233 - 2¹ = 2012311031231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012311031231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52955553435 + ... + 52955553472.

It is an arithmetic number, because the mean of its divisors is an integer number (529555534540).

Almost surely, 2^{2012311031233} is an apocalyptic number.

It is an amenable number.

2012311031233 is a deficient number, since it is larger than the sum of its proper divisors (105911106927).

2012311031233 is a wasteful number, since it uses less digits than its factorization.

2012311031233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105911106926.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2012311031233 its reverse (3321301132102), we get a palindrome (5333612163335).

The spelling of 2012311031233 in words is "two trillion, twelve billion, three hundred eleven million, thirty-one thousand, two hundred thirty-three".