100534441681 has 4 divisors (see below), whose sum is σ = 100977324912. Its totient is φ = 100091558452.

The previous prime is 100534441669. The next prime is 100534441687. The reversal of 100534441681 is 186144435001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100534441681 is a prime.

It is a super-2 number, since 2×100534441681² (a number of 23 digits) contains 22 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 100534441681.

It is not an unprimeable number, because it can be changed into a prime (100534441687) 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 3 ways as a sum of consecutive naturals, for example, 221441275 + ... + 221441728.

It is an arithmetic number, because the mean of its divisors is an integer number (25244331228).

Almost surely, 2^100534441681 is an apocalyptic number.

It is an amenable number.

100534441681 is a deficient number, since it is larger than the sum of its proper divisors (442883231).

100534441681 is an equidigital number, since it uses as much as digits as its factorization.

100534441681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442883230.

The product of its (nonzero) digits is 46080, while the sum is 37.

Adding to 100534441681 its reverse (186144435001), we get a palindrome (286678876682).

The spelling of 100534441681 in words is "one hundred billion, five hundred thirty-four million, four hundred forty-one thousand, six hundred eighty-one".