100085743081 has 4 divisors (see below), whose sum is σ = 104437297152. Its totient is φ = 95734189012.

The previous prime is 100085743061. The next prime is 100085743099. The reversal of 100085743081 is 180347580001.

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 not a de Polignac number, because 100085743081 - 2⁹ = 100085742569 is a prime.

It is a super-2 number, since 2×100085743081² (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 100085743081.

It is not an unprimeable number, because it can be changed into a prime (100085743061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2175777001 + ... + 2175777046.

It is an arithmetic number, because the mean of its divisors is an integer number (26109324288).

Almost surely, 2^100085743081 is an apocalyptic number.

It is an amenable number.

100085743081 is a deficient number, since it is larger than the sum of its proper divisors (4351554071).

100085743081 is an equidigital number, since it uses as much as digits as its factorization.

100085743081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4351554070.

The product of its (nonzero) digits is 26880, while the sum is 37.

The spelling of 100085743081 in words is "one hundred billion, eighty-five million, seven hundred forty-three thousand, eighty-one".