111112222311 has 20 divisors (see below), whose sum is σ = 165992910072. Its totient is φ = 74070149328.

The previous prime is 111112222297. The next prime is 111112222349. The reversal of 111112222311 is 113222211111.

It is a happy number.

It is not a de Polignac number, because 111112222311 - 2⁵ = 111112222279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111112222211) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1665285 + ... + 1730721.

Almost surely, 2^111112222311 is an apocalyptic number.

111112222311 is a deficient number, since it is larger than the sum of its proper divisors (54880687761).

111112222311 is an equidigital number, since it uses as much as digits as its factorization.

111112222311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86412 (or 86403 counting only the distinct ones).

The product of its digits is 48, while the sum is 18.

Adding to 111112222311 its reverse (113222211111), we get a palindrome (224334433422).

The spelling of 111112222311 in words is "one hundred eleven billion, one hundred twelve million, two hundred twenty-two thousand, three hundred eleven".