111133211111 has 8 divisors (see below), whose sum is σ = 119738967600. Its totient is φ = 102535604352.

The previous prime is 111133211099. The next prime is 111133211131. The reversal of 111133211111 is 111112331111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111133211111 - 2¹⁴ = 111133194727 is a prime.

It is a super-2 number, since 2×111133211111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 111133211111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111133211131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2009090 + ... + 2063663.

It is an arithmetic number, because the mean of its divisors is an integer number (14967370950).

Almost surely, 2^111133211111 is an apocalyptic number.

111133211111 is a deficient number, since it is larger than the sum of its proper divisors (8605756489).

111133211111 is a wasteful number, since it uses less digits than its factorization.

111133211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074865.

The product of its digits is 18, while the sum is 17.

Adding to 111133211111 its reverse (111112331111), we get a palindrome (222245542222).

The spelling of 111133211111 in words is "one hundred eleven billion, one hundred thirty-three million, two hundred eleven thousand, one hundred eleven".