641030551121 has 16 divisors (see below), whose sum is σ = 704146867200. Its totient is φ = 580855028688.

The previous prime is 641030551097. The next prime is 641030551123. The reversal of 641030551121 is 121155030146.

It is a cyclic number.

It is not a de Polignac number, because 641030551121 - 2¹⁴ = 641030534737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (641030551123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10951310 + ... + 11009688.

It is an arithmetic number, because the mean of its divisors is an integer number (44009179200).

Almost surely, 2^641030551121 is an apocalyptic number.

It is an amenable number.

641030551121 is a deficient number, since it is larger than the sum of its proper divisors (63116316079).

641030551121 is a wasteful number, since it uses less digits than its factorization.

641030551121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83548.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 641030551121 its reverse (121155030146), we get a palindrome (762185581267).

The spelling of 641030551121 in words is "six hundred forty-one billion, thirty million, five hundred fifty-one thousand, one hundred twenty-one".