105030103 has 4 divisors (see below), whose sum is σ = 105528088. Its totient is φ = 104532120.

The previous prime is 105030067. The next prime is 105030113. The reversal of 105030103 is 301030501.

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 105030103 - 2²⁵ = 71475671 is a prime.

It is a super-2 number, since 2×105030103² = 22062645072381218, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105030113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248676 + ... + 249097.

It is an arithmetic number, because the mean of its divisors is an integer number (26382022).

Almost surely, 2^105030103 is an apocalyptic number.

105030103 is a deficient number, since it is larger than the sum of its proper divisors (497985).

105030103 is an equidigital number, since it uses as much as digits as its factorization.

105030103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497984.

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

The square root of 105030103 is about 10248.4195366895. The cubic root of 105030103 is about 471.8144784038.

Adding to 105030103 its reverse (301030501), we get a palindrome (406060604).

The spelling of 105030103 in words is "one hundred five million, thirty thousand, one hundred three".