112112012009 has 4 divisors (see below), whose sum is σ = 118012644240. Its totient is φ = 106211379780.

The previous prime is 112112012003. The next prime is 112112012017. The reversal of 112112012009 is 900210211211.

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 112112012009 - 2¹⁶ = 112111946473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112112012003) 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, 2950316087 + ... + 2950316124.

It is an arithmetic number, because the mean of its divisors is an integer number (29503161060).

Almost surely, 2^112112012009 is an apocalyptic number.

112112012009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

112112012009 is a deficient number, since it is larger than the sum of its proper divisors (5900632231).

112112012009 is an equidigital number, since it uses as much as digits as its factorization.

112112012009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5900632230.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 112112012009 in words is "one hundred twelve billion, one hundred twelve million, twelve thousand, nine".