112131131 has 4 divisors (see below), whose sum is σ = 128149872. Its totient is φ = 96112392.

The previous prime is 112131121. The next prime is 112131157. The reversal of 112131131 is 131131211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131131211 = 23 ⋅5701357.

It is a cyclic number.

It is not a de Polignac number, because 112131131 - 2¹⁰ = 112130107 is a prime.

It is a super-2 number, since 2×112131131² = 25146781078678322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112131121) 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, 8009360 + ... + 8009373.

It is an arithmetic number, because the mean of its divisors is an integer number (32037468).

Almost surely, 2^112131131 is an apocalyptic number.

112131131 is a deficient number, since it is larger than the sum of its proper divisors (16018741).

112131131 is an equidigital number, since it uses as much as digits as its factorization.

112131131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16018740.

The product of its digits is 18, while the sum is 14.

The square root of 112131131 is about 10589.1987893325. The cubic root of 112131131 is about 482.2165011104.

Adding to 112131131 its reverse (131131211), we get a palindrome (243262342).

The spelling of 112131131 in words is "one hundred twelve million, one hundred thirty-one thousand, one hundred thirty-one".