11113311321 has 16 divisors (see below), whose sum is σ = 18816188800. Its totient is φ = 6350463504.

The previous prime is 11113311301. The next prime is 11113311323. The reversal of 11113311321 is 12311331111.

11113311321 is a `hidden beast` number, since 1 + 1 + 11 + 331 + 1 + 321 = 666.

It is not a de Polignac number, because 11113311321 - 2⁵ = 11113311289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11113311294 and 11113311303.

It is not an unprimeable number, because it can be changed into a prime (11113311323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29400106 + ... + 29400483.

It is an arithmetic number, because the mean of its divisors is an integer number (1176011800).

Almost surely, 2^11113311321 is an apocalyptic number.

It is an amenable number.

11113311321 is a deficient number, since it is larger than the sum of its proper divisors (7702877479).

11113311321 is an equidigital number, since it uses as much as digits as its factorization.

11113311321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58800605 (or 58800599 counting only the distinct ones).

The product of its digits is 54, while the sum is 18.

Adding to 11113311321 its reverse (12311331111), we get a palindrome (23424642432).

The spelling of 11113311321 in words is "eleven billion, one hundred thirteen million, three hundred eleven thousand, three hundred twenty-one".