5443203454321 has 4 divisors (see below), whose sum is σ = 5460705716544. Its totient is φ = 5425701192100.

The previous prime is 5443203454237. The next prime is 5443203454333. The reversal of 5443203454321 is 1234543023445.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5443203454321 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5443203454921) 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, 8751130645 + ... + 8751131266.

It is an arithmetic number, because the mean of its divisors is an integer number (1365176429136).

Almost surely, 2^{5443203454321} is an apocalyptic number.

It is an amenable number.

5443203454321 is a deficient number, since it is larger than the sum of its proper divisors (17502262223).

5443203454321 is a wasteful number, since it uses less digits than its factorization.

5443203454321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17502262222.

The product of its (nonzero) digits is 691200, while the sum is 40.

Adding to 5443203454321 its reverse (1234543023445), we get a palindrome (6677746477766).

The spelling of 5443203454321 in words is "five trillion, four hundred forty-three billion, two hundred three million, four hundred fifty-four thousand, three hundred twenty-one".