1000109903 has 8 divisors (see below), whose sum is σ = 1084272000. Its totient is φ = 916980768.

The previous prime is 1000109893. The next prime is 1000109917. The reversal of 1000109903 is 3099010001.

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

It is a cyclic number.

It is not a de Polignac number, because 1000109903 - 2⁸ = 1000109647 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 (1000109993) 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, 256223 + ... + 260096.

It is an arithmetic number, because the mean of its divisors is an integer number (135534000).

Almost surely, 2^1000109903 is an apocalyptic number.

1000109903 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1000109903 is a deficient number, since it is larger than the sum of its proper divisors (84162097).

1000109903 is a wasteful number, since it uses less digits than its factorization.

1000109903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516481.

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 1000109903 is about 31624.5142729497. The cubic root of 1000109903 is about 1000.0366329913.

Adding to 1000109903 its reverse (3099010001), we get a palindrome (4099119904).

The spelling of 1000109903 in words is "one billion, one hundred nine thousand, nine hundred three".