11212311331233 has 6 divisors (see below), whose sum is σ = 16195560811794. Its totient is φ = 7474874220816.

The previous prime is 11212311331229. The next prime is 11212311331237. The reversal of 11212311331233 is 33213311321211.

11212311331233 is a `hidden beast` number, since 1 + 1 + 2 + 1 + 2 + 311 + 3 + 312 + 33 = 666.

It is an interprime number because it is at equal distance from previous prime (11212311331229) and next prime (11212311331237).

It can be written as a sum of positive squares in only one way, i.e., 11046961747809 + 165349583424 = 3323697^2 + 406632^2 .

It is not a de Polignac number, because 11212311331233 - 2² = 11212311331229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11212311331197 and 11212311331206.

It is not an unprimeable number, because it can be changed into a prime (11212311331237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 622906185060 + ... + 622906185077.

It is an arithmetic number, because the mean of its divisors is an integer number (2699260135299).

Almost surely, 2^{11212311331233} is an apocalyptic number.

It is an amenable number.

11212311331233 is a deficient number, since it is larger than the sum of its proper divisors (4983249480561).

11212311331233 is a wasteful number, since it uses less digits than its factorization.

11212311331233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245812370143 (or 1245812370140 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

Adding to 11212311331233 its reverse (33213311321211), we get a palindrome (44425622652444).

The spelling of 11212311331233 in words is "eleven trillion, two hundred twelve billion, three hundred eleven million, three hundred thirty-one thousand, two hundred thirty-three".