100111103 has 4 divisors (see below), whose sum is σ = 103563240. Its totient is φ = 96658968.

The previous prime is 100111087. The next prime is 100111127. The reversal of 100111103 is 301111001.

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 100111103 - 2⁴ = 100111087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100111003) 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, 1726025 + ... + 1726082.

It is an arithmetic number, because the mean of its divisors is an integer number (25890810).

Almost surely, 2^100111103 is an apocalyptic number.

100111103 is a deficient number, since it is larger than the sum of its proper divisors (3452137).

100111103 is an equidigital number, since it uses as much as digits as its factorization.

100111103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452136.

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

The square root of 100111103 is about 10005.5536078720. The cubic root of 100111103 is about 464.3307178873.

Adding to 100111103 its reverse (301111001), we get a palindrome (401222104).

The spelling of 100111103 in words is "one hundred million, one hundred eleven thousand, one hundred three".