105311103 has 4 divisors (see below), whose sum is σ = 140414808. Its totient is φ = 70207400.

The previous prime is 105311077. The next prime is 105311117. The reversal of 105311103 is 301113501.

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 105311103 - 2⁸ = 105310847 is a prime.

It is a super-2 number, since 2×105311103² = 22180856830153218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105311303) 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, 17551848 + ... + 17551853.

It is an arithmetic number, because the mean of its divisors is an integer number (35103702).

Almost surely, 2^105311103 is an apocalyptic number.

105311103 is a deficient number, since it is larger than the sum of its proper divisors (35103705).

105311103 is an equidigital number, since it uses as much as digits as its factorization.

105311103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35103704.

The product of its (nonzero) digits is 45, while the sum is 15.

The square root of 105311103 is about 10262.1198102536. The cubic root of 105311103 is about 472.2348715556.

Adding to 105311103 its reverse (301113501), we get a palindrome (406424604).

The spelling of 105311103 in words is "one hundred five million, three hundred eleven thousand, one hundred three".