343421445503 has 8 divisors (see below), whose sum is σ = 348507277200. Its totient is φ = 338362884288.

The previous prime is 343421445487. The next prime is 343421445511. The reversal of 343421445503 is 305544124343.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 343421445503 - 2⁴ = 343421445487 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 (343421445533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6792248 + ... + 6842621.

It is an arithmetic number, because the mean of its divisors is an integer number (43563409650).

Almost surely, 2^343421445503 is an apocalyptic number.

343421445503 is a deficient number, since it is larger than the sum of its proper divisors (5085831697).

343421445503 is a wasteful number, since it uses less digits than its factorization.

343421445503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13635241.

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 343421445503 its reverse (305544124343), we get a palindrome (648965569846).

The spelling of 343421445503 in words is "three hundred forty-three billion, four hundred twenty-one million, four hundred forty-five thousand, five hundred three".