641330431310 has 16 divisors (see below), whose sum is σ = 1156141225152. Its totient is φ = 256144072800.

The previous prime is 641330431303. The next prime is 641330431319. The reversal of 641330431310 is 13134033146.

It is a super-2 number, since 2×641330431310² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641330431319) 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, 48505526 + ... + 48518745.

It is an arithmetic number, because the mean of its divisors is an integer number (72258826572).

Almost surely, 2^641330431310 is an apocalyptic number.

641330431310 is a deficient number, since it is larger than the sum of its proper divisors (514810793842).

641330431310 is a wasteful number, since it uses less digits than its factorization.

641330431310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97024939.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 641330431310 its reverse (13134033146), we get a palindrome (654464464456).

The spelling of 641330431310 in words is "six hundred forty-one billion, three hundred thirty million, four hundred thirty-one thousand, three hundred ten".