105481571321 has 16 divisors (see below), whose sum is σ = 130246502400. Its totient is φ = 85094372160.

The previous prime is 105481571311. The next prime is 105481571333. The reversal of 105481571321 is 123175184501.

It is not a de Polignac number, because 105481571321 - 2¹⁰ = 105481570297 is a prime.

It is a super-2 number, since 2×105481571321² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105481571311) 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 15 ways as a sum of consecutive naturals, for example, 9039065 + ... + 9050726.

It is an arithmetic number, because the mean of its divisors is an integer number (8140406400).

Almost surely, 2^105481571321 is an apocalyptic number.

It is an amenable number.

105481571321 is a deficient number, since it is larger than the sum of its proper divisors (24764931079).

105481571321 is an equidigital number, since it uses as much as digits as its factorization.

105481571321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18089829 (or 18089815 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 38.

The spelling of 105481571321 in words is "one hundred five billion, four hundred eighty-one million, five hundred seventy-one thousand, three hundred twenty-one".