112009199781 has 8 divisors (see below), whose sum is σ = 150521549824. Its totient is φ = 74084824800.

The previous prime is 112009199749. The next prime is 112009199789. The reversal of 112009199781 is 187991900211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 112009199781 - 2⁵ = 112009199749 is a prime.

It is a super-2 number, since 2×112009199781² (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 112009199781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112009199789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146993320 + ... + 146994081.

It is an arithmetic number, because the mean of its divisors is an integer number (18815193728).

Almost surely, 2^112009199781 is an apocalyptic number.

It is an amenable number.

112009199781 is a deficient number, since it is larger than the sum of its proper divisors (38512350043).

112009199781 is a wasteful number, since it uses less digits than its factorization.

112009199781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293987531.

The product of its (nonzero) digits is 81648, while the sum is 48.

The spelling of 112009199781 in words is "one hundred twelve billion, nine million, one hundred ninety-nine thousand, seven hundred eighty-one".