10100243 has 4 divisors (see below), whose sum is σ = 10539408. Its totient is φ = 9661080.

The previous prime is 10100221. The next prime is 10100249. The reversal of 10100243 is 34200101.

It is a happy number.

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 10100243 - 2⁶ = 10100179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10100249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219548 + ... + 219593.

It is an arithmetic number, because the mean of its divisors is an integer number (2634852).

Almost surely, 2^10100243 is an apocalyptic number.

10100243 is a deficient number, since it is larger than the sum of its proper divisors (439165).

10100243 is an equidigital number, since it uses as much as digits as its factorization.

10100243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439164.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 10100243 is about 3178.0879471783. The cubic root of 10100243 is about 216.1609668349.

Adding to 10100243 its reverse (34200101), we get a palindrome (44300344).

The spelling of 10100243 in words is "ten million, one hundred thousand, two hundred forty-three".