1011103 has 4 divisors (see below), whose sum is σ = 1055088. Its totient is φ = 967120.

The previous prime is 1011091. The next prime is 1011107. The reversal of 1011103 is 3011101.

It is a happy number.

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 1011103 - 2⁵ = 1011071 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 (1011107) 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, 21958 + ... + 22003.

It is an arithmetic number, because the mean of its divisors is an integer number (263772).

2^1011103 is an apocalyptic number.

1011103 is a deficient number, since it is larger than the sum of its proper divisors (43985).

1011103 is an equidigital number, since it uses as much as digits as its factorization.

1011103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43984.

The product of its (nonzero) digits is 3, while the sum is 7.

The square root of 1011103 is about 1005.5361753811. The cubic root of 1011103 is about 100.3687386469.

Adding to 1011103 its reverse (3011101), we get a palindrome (4022204).

The spelling of 1011103 in words is "one million, eleven thousand, one hundred three".