112131223 has 4 divisors (see below), whose sum is σ = 113710608. Its totient is φ = 110551840.

The previous prime is 112131203. The next prime is 112131277. The reversal of 112131223 is 322131211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322131211 = 17683 ⋅18217.

It is a cyclic number.

It is not a de Polignac number, because 112131223 - 2⁵ = 112131191 is a prime.

It is a super-2 number, since 2×112131223² = 25146822342951458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112131197 and 112131206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112131203) 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, 789586 + ... + 789727.

It is an arithmetic number, because the mean of its divisors is an integer number (28427652).

Almost surely, 2^112131223 is an apocalyptic number.

112131223 is a deficient number, since it is larger than the sum of its proper divisors (1579385).

112131223 is an equidigital number, since it uses as much as digits as its factorization.

112131223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579384.

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

The square root of 112131223 is about 10589.2031333807. The cubic root of 112131223 is about 482.2166329914.

Adding to 112131223 its reverse (322131211), we get a palindrome (434262434).

The spelling of 112131223 in words is "one hundred twelve million, one hundred thirty-one thousand, two hundred twenty-three".