643106260103 has 8 divisors (see below), whose sum is σ = 645059646000. Its totient is φ = 641153507328.

The previous prime is 643106260067. The next prime is 643106260123. The reversal of 643106260103 is 301062601346.

643106260103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 643106260103 - 2¹⁰ = 643106259079 is a prime.

It is a super-3 number, since 3×643106260103³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 643106260103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (643106260123) 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, 1917575 + ... + 2227847.

It is an arithmetic number, because the mean of its divisors is an integer number (80632455750).

Almost surely, 2^643106260103 is an apocalyptic number.

643106260103 is a deficient number, since it is larger than the sum of its proper divisors (1953385897).

643106260103 is a wasteful number, since it uses less digits than its factorization.

643106260103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316561.

The product of its (nonzero) digits is 15552, while the sum is 32.

Adding to 643106260103 its reverse (301062601346), we get a palindrome (944168861449).

The spelling of 643106260103 in words is "six hundred forty-three billion, one hundred six million, two hundred sixty thousand, one hundred three".