105210203 has 12 divisors (see below), whose sum is σ = 125697312. Its totient is φ = 87741360.

The previous prime is 105210197. The next prime is 105210221. The reversal of 105210203 is 302012501.

It is a happy number.

It is not a de Polignac number, because 105210203 - 2⁶ = 105210139 is a prime.

It is a super-2 number, since 2×105210203² = 22138373630602418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105210233) 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 11 ways as a sum of consecutive naturals, for example, 27203 + ... + 30828.

It is an arithmetic number, because the mean of its divisors is an integer number (10474776).

Almost surely, 2^105210203 is an apocalyptic number.

105210203 is a deficient number, since it is larger than the sum of its proper divisors (20487109).

105210203 is an equidigital number, since it uses as much as digits as its factorization.

105210203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58082 (or 58075 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 105210203 is about 10257.2024938577. The cubic root of 105210203 is about 472.0840051453.

Adding to 105210203 its reverse (302012501), we get a palindrome (407222704).

The spelling of 105210203 in words is "one hundred five million, two hundred ten thousand, two hundred three".