110112112009 has 4 divisors (see below), whose sum is σ = 110118983940. Its totient is φ = 110105240080.

The previous prime is 110112111959. The next prime is 110112112043. The reversal of 110112112009 is 900211211011.

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 21903112009 + 88209000000 = 147997^2 + 297000^2 .

It is a cyclic number.

It is not a de Polignac number, because 110112112009 - 2¹⁵ = 110112079241 is a prime.

It is a super-2 number, since 2×110112112009² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110112112109) 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, 3411874 + ... + 3443995.

It is an arithmetic number, because the mean of its divisors is an integer number (27529745985).

Almost surely, 2^110112112009 is an apocalyptic number.

It is an amenable number.

110112112009 is a deficient number, since it is larger than the sum of its proper divisors (6871931).

110112112009 is an equidigital number, since it uses as much as digits as its factorization.

110112112009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6871930.

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 110112112009 in words is "one hundred ten billion, one hundred twelve million, one hundred twelve thousand, nine".