100305103 has 4 divisors (see below), whose sum is σ = 100479520. Its totient is φ = 100130688.

The previous prime is 100305089. The next prime is 100305109. The reversal of 100305103 is 301503001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100305103 is a prime.

It is a super-2 number, since 2×100305103² = 20122227375681218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100305109) 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, 86343 + ... + 87496.

It is an arithmetic number, because the mean of its divisors is an integer number (25119880).

Almost surely, 2^100305103 is an apocalyptic number.

100305103 is a deficient number, since it is larger than the sum of its proper divisors (174417).

100305103 is an equidigital number, since it uses as much as digits as its factorization.

100305103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174416.

The product of its (nonzero) digits is 45, while the sum is 13.

The square root of 100305103 is about 10015.2435317370. The cubic root of 100305103 is about 464.6304583155.

Adding to 100305103 its reverse (301503001), we get a palindrome (401808104).

The spelling of 100305103 in words is "one hundred million, three hundred five thousand, one hundred three".