105100103 has 4 divisors (see below), whose sum is σ = 111282480. Its totient is φ = 98917728.

The previous prime is 105100049. The next prime is 105100109. The reversal of 105100103 is 301001501.

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 105100103 - 2¹⁰ = 105099079 is a prime.

It is a super-2 number, since 2×105100103² = 22092063301221218, 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 (105100109) 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, 3091163 + ... + 3091196.

It is an arithmetic number, because the mean of its divisors is an integer number (27820620).

Almost surely, 2^105100103 is an apocalyptic number.

105100103 is a deficient number, since it is larger than the sum of its proper divisors (6182377).

105100103 is an equidigital number, since it uses as much as digits as its factorization.

105100103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6182376.

The product of its (nonzero) digits is 15, while the sum is 11.

The square root of 105100103 is about 10251.8341285840. The cubic root of 105100103 is about 471.9192727374.

Adding to 105100103 its reverse (301001501), we get a palindrome (406101604).

The spelling of 105100103 in words is "one hundred five million, one hundred thousand, one hundred three".