43321220343103 has 4 divisors (see below), whose sum is σ = 44055478315080. Its totient is φ = 42586962371128.

The previous prime is 43321220343073. The next prime is 43321220343113. The reversal of 43321220343103 is 30134302212334.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 43321220343103 - 2²¹ = 43321218245951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43321220343113) 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, 367128985900 + ... + 367128986017.

It is an arithmetic number, because the mean of its divisors is an integer number (11013869578770).

Almost surely, 2^{43321220343103} is an apocalyptic number.

43321220343103 is a deficient number, since it is larger than the sum of its proper divisors (734257971977).

43321220343103 is an equidigital number, since it uses as much as digits as its factorization.

43321220343103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734257971976.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 43321220343103 its reverse (30134302212334), we get a palindrome (73455522555437).

The spelling of 43321220343103 in words is "forty-three trillion, three hundred twenty-one billion, two hundred twenty million, three hundred forty-three thousand, one hundred three".