100808231281705 has 4 divisors (see below), whose sum is σ = 120969877538052. Its totient is φ = 80646585025360.

The previous prime is 100808231281669. The next prime is 100808231281717. The reversal of 100808231281705 is 507182132808001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66390343992729 + 34417887288976 = 8148027^2 + 5866676^2 .

It is not a de Polignac number, because 100808231281705 - 2⁷ = 100808231281577 is a prime.

It is a super-3 number, since 3×100808231281705³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10080823128166 + ... + 10080823128175.

It is an arithmetic number, because the mean of its divisors is an integer number (30242469384513).

Almost surely, 2^{100808231281705} is an apocalyptic number.

It is an amenable number.

100808231281705 is a deficient number, since it is larger than the sum of its proper divisors (20161646256347).

100808231281705 is an equidigital number, since it uses as much as digits as its factorization.

100808231281705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20161646256346.

The product of its (nonzero) digits is 215040, while the sum is 46.

The spelling of 100808231281705 in words is "one hundred trillion, eight hundred eight billion, two hundred thirty-one million, two hundred eighty-one thousand, seven hundred five".