111003111 has 12 divisors (see below), whose sum is σ = 168776920. Its totient is φ = 70107120.

The previous prime is 111003059. The next prime is 111003161. The reversal of 111003111 is 111300111.

It is not a de Polignac number, because 111003111 - 2¹⁸ = 110740967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111003093 and 111003102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111003161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 324400 + ... + 324741.

Almost surely, 2^111003111 is an apocalyptic number.

111003111 is a deficient number, since it is larger than the sum of its proper divisors (57773809).

111003111 is a wasteful number, since it uses less digits than its factorization.

111003111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649166 (or 649163 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 9.

The square root of 111003111 is about 10535.8013933445. The cubic root of 111003111 is about 480.5940431607.

Adding to 111003111 its reverse (111300111), we get a palindrome (222303222).

The spelling of 111003111 in words is "one hundred eleven million, three thousand, one hundred eleven".