641703421101 has 8 divisors (see below), whose sum is σ = 858028371840. Its totient is φ = 426590375552.

The previous prime is 641703421097. The next prime is 641703421169. The reversal of 641703421101 is 101124307146.

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 641703421101 - 2² = 641703421097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641703421171) 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, 302975061 + ... + 302977178.

It is an arithmetic number, because the mean of its divisors is an integer number (107253546480).

Almost surely, 2^641703421101 is an apocalyptic number.

It is an amenable number.

641703421101 is a deficient number, since it is larger than the sum of its proper divisors (216324950739).

641703421101 is a wasteful number, since it uses less digits than its factorization.

641703421101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605952595.

The product of its (nonzero) digits is 4032, while the sum is 30.

Adding to 641703421101 its reverse (101124307146), we get a palindrome (742827728247).

The spelling of 641703421101 in words is "six hundred forty-one billion, seven hundred three million, four hundred twenty-one thousand, one hundred one".