11331323313311 has 4 divisors (see below), whose sum is σ = 11363978424072. Its totient is φ = 11298668202552.

The previous prime is 11331323313239. The next prime is 11331323313313. The reversal of 11331323313311 is 11331332313311.

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-11331323313311 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 (11331323313313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16327554860 + ... + 16327555553.

It is an arithmetic number, because the mean of its divisors is an integer number (2840994606018).

Almost surely, 2^{11331323313311} is an apocalyptic number.

11331323313311 is a deficient number, since it is larger than the sum of its proper divisors (32655110761).

11331323313311 is an equidigital number, since it uses as much as digits as its factorization.

11331323313311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32655110760.

The product of its digits is 4374, while the sum is 29.

Adding to 11331323313311 its reverse (11331332313311), we get a palindrome (22662655626622).

Subtracting 11331323313311 from its reverse (11331332313311), we obtain a square (9000000 = 3000²).

The spelling of 11331323313311 in words is "eleven trillion, three hundred thirty-one billion, three hundred twenty-three million, three hundred thirteen thousand, three hundred eleven".