105310243 has 4 divisors (see below), whose sum is σ = 105682648. Its totient is φ = 104937840.

The previous prime is 105310211. The next prime is 105310259. The reversal of 105310243 is 342013501.

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 105310243 - 2⁵ = 105310211 is a prime.

It is a super-2 number, since 2×105310243² = 22180494561438098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105310243.

It is not an unprimeable number, because it can be changed into a prime (105310273) 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, 185778 + ... + 186343.

It is an arithmetic number, because the mean of its divisors is an integer number (26420662).

Almost surely, 2^105310243 is an apocalyptic number.

105310243 is a deficient number, since it is larger than the sum of its proper divisors (372405).

105310243 is an equidigital number, since it uses as much as digits as its factorization.

105310243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372404.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 105310243 is about 10262.0779084940. The cubic root of 105310243 is about 472.2335860846.

Adding to 105310243 its reverse (342013501), we get a palindrome (447323744).

The spelling of 105310243 in words is "one hundred five million, three hundred ten thousand, two hundred forty-three".