111113123311 has 4 divisors (see below), whose sum is σ = 111961315224. Its totient is φ = 110264931400.

The previous prime is 111113123281. The next prime is 111113123327. The reversal of 111113123311 is 113321311111.

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

It is a cyclic number.

It is not a de Polignac number, because 111113123311 - 2⁷ = 111113123183 is a prime.

It is a super-2 number, since 2×111113123311² (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 (111113123351) 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, 424095760 + ... + 424096021.

It is an arithmetic number, because the mean of its divisors is an integer number (27990328806).

Almost surely, 2^111113123311 is an apocalyptic number.

111113123311 is a deficient number, since it is larger than the sum of its proper divisors (848191913).

111113123311 is an equidigital number, since it uses as much as digits as its factorization.

111113123311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848191912.

The product of its digits is 54, while the sum is 19.

Adding to 111113123311 its reverse (113321311111), we get a palindrome (224434434422).

The spelling of 111113123311 in words is "one hundred eleven billion, one hundred thirteen million, one hundred twenty-three thousand, three hundred eleven".