112231009 has 6 divisors (see below), whose sum is σ = 123361490. Its totient is φ = 102028080.

The previous prime is 112231001. The next prime is 112231019. The reversal of 112231009 is 900132211.

It can be written as a sum of positive squares in only one way, i.e., 111513600 + 717409 = 10560^2 + 847^2 .

It is not a de Polignac number, because 112231009 - 2³ = 112231001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112231001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 463644 + ... + 463885.

Almost surely, 2^112231009 is an apocalyptic number.

It is an amenable number.

112231009 is a deficient number, since it is larger than the sum of its proper divisors (11130481).

112231009 is an equidigital number, since it uses as much as digits as its factorization.

112231009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927551 (or 927540 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 112231009 is about 10593.9137715955. The cubic root of 112231009 is about 482.3596327171.

It can be divided in two parts, 1122 and 31009, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 112231009 in words is "one hundred twelve million, two hundred thirty-one thousand, nine".