111003 has 8 divisors (see below), whose sum is σ = 149568. Its totient is φ = 73224.

The previous prime is 110989. The next prime is 111029. The reversal of 111003 is 300111.

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

It is not a de Polignac number, because 111003 - 2⁶ = 110939 is a prime.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 110982 and 111000.

It is not an unprimeable number, because it can be changed into a prime (111043) 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, 376 + ... + 602.

It is an arithmetic number, because the mean of its divisors is an integer number (18696).

2¹¹¹⁰⁰³ is an apocalyptic number.

111003 is a deficient number, since it is larger than the sum of its proper divisors (38565).

111003 is a wasteful number, since it uses less digits than its factorization.

111003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393.

The product of its (nonzero) digits is 3, while the sum is 6.

The square root of 111003 is about 333.1711272004. The cubic root of 111003 is about 48.0593882967.

Adding to 111003 its reverse (300111), we get a palindrome (411114).

The spelling of 111003 in words is "one hundred eleven thousand, three", and thus it is an iban number.