111113221311 has 8 divisors (see below), whose sum is σ = 164612179760. Its totient is φ = 74075480856.

The previous prime is 111113221279. The next prime is 111113221313. The reversal of 111113221311 is 113122311111.

It is not a de Polignac number, because 111113221311 - 2⁵ = 111113221279 is a prime.

It is a super-2 number, since 2×111113221311² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111113221313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2057652220 + ... + 2057652273.

It is an arithmetic number, because the mean of its divisors is an integer number (20576522470).

Almost surely, 2^111113221311 is an apocalyptic number.

111113221311 is a deficient number, since it is larger than the sum of its proper divisors (53498958449).

111113221311 is an equidigital number, since it uses as much as digits as its factorization.

111113221311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115304502 (or 4115304496 counting only the distinct ones).

The product of its digits is 36, while the sum is 18.

Adding to 111113221311 its reverse (113122311111), we get a palindrome (224235532422).

The spelling of 111113221311 in words is "one hundred eleven billion, one hundred thirteen million, two hundred twenty-one thousand, three hundred eleven".