105021103 has 6 divisors (see below), whose sum is σ = 115436552. Its totient is φ = 95473620.

The previous prime is 105021083. The next prime is 105021107. The reversal of 105021103 is 301120501.

It is not a de Polignac number, because 105021103 - 2⁵ = 105021071 is a prime.

It is a super-2 number, since 2×105021103² = 22058864150673218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105021107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 433851 + ... + 434092.

Almost surely, 2^105021103 is an apocalyptic number.

105021103 is a deficient number, since it is larger than the sum of its proper divisors (10415449).

105021103 is an equidigital number, since it uses as much as digits as its factorization.

105021103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867965 (or 867954 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 105021103 is about 10247.9804351882. The cubic root of 105021103 is about 471.8010014688.

Adding to 105021103 its reverse (301120501), we get a palindrome (406141604).

The spelling of 105021103 in words is "one hundred five million, twenty-one thousand, one hundred three".