11331321232311 has 192 divisors, whose sum is σ = 18146478325248. Its totient is φ = 6785580662784.

The previous prime is 11331321232261. The next prime is 11331321232333. The reversal of 11331321232311 is 11323212313311.

11331321232311 is a `hidden beast` number, since 1 + 1 + 3 + 3 + 1 + 321 + 2 + 323 + 11 = 666.

It is not a de Polignac number, because 11331321232311 - 2¹⁷ = 11331321101239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331321239311) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 18365188075 + ... + 18365188691.

It is an arithmetic number, because the mean of its divisors is an integer number (94512907944).

Almost surely, 2^{11331321232311} is an apocalyptic number.

11331321232311 is a deficient number, since it is larger than the sum of its proper divisors (6815157092937).

11331321232311 is a wasteful number, since it uses less digits than its factorization.

11331321232311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130 (or 1127 counting only the distinct ones).

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

Adding to 11331321232311 its reverse (11323212313311), we get a palindrome (22654533545622).

The spelling of 11331321232311 in words is "eleven trillion, three hundred thirty-one billion, three hundred twenty-one million, two hundred thirty-two thousand, three hundred eleven".