641103343 has 8 divisors (see below), whose sum is σ = 666230400. Its totient is φ = 616254240.

The previous prime is 641103341. The next prime is 641103349. The reversal of 641103343 is 343301146.

It is a happy number.

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 641103343 - 2¹ = 641103341 is a prime.

It is a super-2 number, since 2×641103343² = 822026992811551298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641103341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64780 + ... + 74017.

It is an arithmetic number, because the mean of its divisors is an integer number (83278800).

Almost surely, 2^641103343 is an apocalyptic number.

641103343 is a deficient number, since it is larger than the sum of its proper divisors (25127057).

641103343 is a wasteful number, since it uses less digits than its factorization.

641103343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138977.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 641103343 is about 25320.0186216361. The cubic root of 641103343 is about 862.2688167905.

Adding to 641103343 its reverse (343301146), we get a palindrome (984404489).

The spelling of 641103343 in words is "six hundred forty-one million, one hundred three thousand, three hundred forty-three".