112312213 has 4 divisors (see below), whose sum is σ = 120951628. Its totient is φ = 103672800.

The previous prime is 112312201. The next prime is 112312241. The reversal of 112312213 is 312213211.

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 48344209 + 63968004 = 6953^2 + 7998^2 .

It is a cyclic number.

It is not a de Polignac number, because 112312213 - 2⁵ = 112312181 is a prime.

It is a super-2 number, since 2×112312213² = 25228066377914738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112312313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4319688 + ... + 4319713.

It is an arithmetic number, because the mean of its divisors is an integer number (30237907).

Almost surely, 2^112312213 is an apocalyptic number.

112312213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

112312213 is a deficient number, since it is larger than the sum of its proper divisors (8639415).

112312213 is an equidigital number, since it uses as much as digits as its factorization.

112312213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8639414.

The product of its digits is 72, while the sum is 16.

The square root of 112312213 is about 10597.7456565064. The cubic root of 112312213 is about 482.4759407048.

Adding to 112312213 its reverse (312213211), we get a palindrome (424525424).

The spelling of 112312213 in words is "one hundred twelve million, three hundred twelve thousand, two hundred thirteen".