100423442443 has 4 divisors (see below), whose sum is σ = 100424437560. Its totient is φ = 100422447328.

The previous prime is 100423442429. The next prime is 100423442447. The reversal of 100423442443 is 344244324001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 100423442443 - 2⁹ = 100423441931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100423442447) 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, 326605 + ... + 554542.

It is an arithmetic number, because the mean of its divisors is an integer number (25106109390).

Almost surely, 2^100423442443 is an apocalyptic number.

100423442443 is a deficient number, since it is larger than the sum of its proper divisors (995117).

100423442443 is an equidigital number, since it uses as much as digits as its factorization.

100423442443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995116.

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

Adding to 100423442443 its reverse (344244324001), we get a palindrome (444667766444).

The spelling of 100423442443 in words is "one hundred billion, four hundred twenty-three million, four hundred forty-two thousand, four hundred forty-three".