11331211321233 has 40 divisors (see below), whose sum is σ = 16941798235208. Its totient is φ = 7547482146816.

The previous prime is 11331211321229. The next prime is 11331211321247. The reversal of 11331211321233 is 33212311213311.

11331211321233 is a `hidden beast` number, since 1 + 1 + 3 + 312 + 1 + 1 + 321 + 23 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 162628305984 + 11168583015249 = 403272^2 + 3341943^2 .

It is not a de Polignac number, because 11331211321233 - 2² = 11331211321229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11331211321197 and 11331211321206.

It is not an unprimeable number, because it can be changed into a prime (11331211321333) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 528669885 + ... + 528691317.

Almost surely, 2^{11331211321233} is an apocalyptic number.

It is an amenable number.

11331211321233 is a deficient number, since it is larger than the sum of its proper divisors (5610586913975).

11331211321233 is a wasteful number, since it uses less digits than its factorization.

11331211321233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26895 (or 26886 counting only the distinct ones).

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

Adding to 11331211321233 its reverse (33212311213311), we get a palindrome (44543522534544).

The spelling of 11331211321233 in words is "eleven trillion, three hundred thirty-one billion, two hundred eleven million, three hundred twenty-one thousand, two hundred thirty-three".