11331120212311 has 4 divisors (see below), whose sum is σ = 11544914933352. Its totient is φ = 11117325491272.

The previous prime is 11331120212299. The next prime is 11331120212341. The reversal of 11331120212311 is 11321202113311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11331120212311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331120212341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106897360441 + ... + 106897360546.

It is an arithmetic number, because the mean of its divisors is an integer number (2886228733338).

Almost surely, 2^{11331120212311} is an apocalyptic number.

11331120212311 is a deficient number, since it is larger than the sum of its proper divisors (213794721041).

11331120212311 is an equidigital number, since it uses as much as digits as its factorization.

11331120212311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213794721040.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 11331120212311 its reverse (11321202113311), we get a palindrome (22652322325622).

The spelling of 11331120212311 in words is "eleven trillion, three hundred thirty-one billion, one hundred twenty million, two hundred twelve thousand, three hundred eleven".