100443243 has 4 divisors (see below), whose sum is σ = 133924328. Its totient is φ = 66962160.

The previous prime is 100443241. The next prime is 100443283. The reversal of 100443243 is 342344001.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 100443243 - 2¹ = 100443241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100443241) 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, 16740538 + ... + 16740543.

It is an arithmetic number, because the mean of its divisors is an integer number (33481082).

Almost surely, 2^100443243 is an apocalyptic number.

100443243 is a deficient number, since it is larger than the sum of its proper divisors (33481085).

100443243 is an equidigital number, since it uses as much as digits as its factorization.

100443243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33481084.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 100443243 is about 10022.1376462310. The cubic root of 100443243 is about 464.8436565390.

Adding to 100443243 its reverse (342344001), we get a palindrome (442787244).

The spelling of 100443243 in words is "one hundred million, four hundred forty-three thousand, two hundred forty-three".