100043112243 has 4 divisors (see below), whose sum is σ = 133390816328. Its totient is φ = 66695408160.

The previous prime is 100043112241. The next prime is 100043112277. The reversal of 100043112243 is 342211340001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342211340001 = 3 ⋅114070446667.

It is not a de Polignac number, because 100043112243 - 2¹ = 100043112241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100043112241) 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, 16673852038 + ... + 16673852043.

It is an arithmetic number, because the mean of its divisors is an integer number (33347704082).

Almost surely, 2^100043112243 is an apocalyptic number.

100043112243 is a deficient number, since it is larger than the sum of its proper divisors (33347704085).

100043112243 is an equidigital number, since it uses as much as digits as its factorization.

100043112243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33347704084.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 100043112243 its reverse (342211340001), we get a palindrome (442254452244).

The spelling of 100043112243 in words is "one hundred billion, forty-three million, one hundred twelve thousand, two hundred forty-three".