100443440443 has 4 divisors (see below), whose sum is σ = 100760297040. Its totient is φ = 100126583848.

The previous prime is 100443440431. The next prime is 100443440527. The reversal of 100443440443 is 344044344001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100443440443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100443440243) 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, 158427823 + ... + 158428456.

It is an arithmetic number, because the mean of its divisors is an integer number (25190074260).

Almost surely, 2^100443440443 is an apocalyptic number.

100443440443 is a deficient number, since it is larger than the sum of its proper divisors (316856597).

100443440443 is an equidigital number, since it uses as much as digits as its factorization.

100443440443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316856596.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 100443440443 its reverse (344044344001), we get a palindrome (444487784444).

The spelling of 100443440443 in words is "one hundred billion, four hundred forty-three million, four hundred forty thousand, four hundred forty-three".