111100103 has 4 divisors (see below), whose sum is σ = 112119480. Its totient is φ = 110080728.

The previous prime is 111100061. The next prime is 111100123. The reversal of 111100103 is 301001111.

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 111100103 - 2⁸ = 111099847 is a prime.

It is a super-3 number, since 3×111100103³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100123) 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, 509525 + ... + 509742.

It is an arithmetic number, because the mean of its divisors is an integer number (28029870).

Almost surely, 2^111100103 is an apocalyptic number.

111100103 is a deficient number, since it is larger than the sum of its proper divisors (1019377).

111100103 is a wasteful number, since it uses less digits than its factorization.

111100103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019376.

The product of its (nonzero) digits is 3, while the sum is 8.

The square root of 111100103 is about 10540.4033604032. The cubic root of 111100103 is about 480.7339798013.

Adding to 111100103 its reverse (301001111), we get a palindrome (412101214).

The spelling of 111100103 in words is "one hundred eleven million, one hundred thousand, one hundred three".