11331111023311 has 4 divisors (see below), whose sum is σ = 11331118429624. Its totient is φ = 11331103617000.

The previous prime is 11331111023291. The next prime is 11331111023317. The reversal of 11331111023311 is 11332011113311.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11331111023311 - 2¹⁷ = 11331110892239 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 (11331111023317) 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, 463605 + ... + 4783006.

It is an arithmetic number, because the mean of its divisors is an integer number (2832779607406).

Almost surely, 2^{11331111023311} is an apocalyptic number.

11331111023311 is a deficient number, since it is larger than the sum of its proper divisors (7406313).

11331111023311 is an equidigital number, since it uses as much as digits as its factorization.

11331111023311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7406312.

The product of its (nonzero) digits is 162, while the sum is 22.

Adding to 11331111023311 its reverse (11332011113311), we get a palindrome (22663122136622).

The spelling of 11331111023311 in words is "eleven trillion, three hundred thirty-one billion, one hundred eleven million, twenty-three thousand, three hundred eleven".