100321443043 has 4 divisors (see below), whose sum is σ = 100425189040. Its totient is φ = 100217697048.

The previous prime is 100321443023. The next prime is 100321443067. The reversal of 100321443043 is 340344123001.

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-100321443043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100321442999 and 100321443017.

It is not an unprimeable number, because it can be changed into a prime (100321443023) 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, 51871548 + ... + 51873481.

It is an arithmetic number, because the mean of its divisors is an integer number (25106297260).

Almost surely, 2^100321443043 is an apocalyptic number.

100321443043 is a deficient number, since it is larger than the sum of its proper divisors (103745997).

100321443043 is an equidigital number, since it uses as much as digits as its factorization.

100321443043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103745996.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 100321443043 its reverse (340344123001), we get a palindrome (440665566044).

The spelling of 100321443043 in words is "one hundred billion, three hundred twenty-one million, four hundred forty-three thousand, forty-three".