112281131 has 2 divisors, whose sum is σ = 112281132. Its totient is φ = 112281130.

The previous prime is 112281109. The next prime is 112281133. The reversal of 112281131 is 131182211.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (131182211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112281131 - 2¹⁰ = 112280107 is a prime.

It is a super-2 number, since 2×112281131² = 25214104757278322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 112281133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (112281133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56140565 + 56140566.

It is an arithmetic number, because the mean of its divisors is an integer number (56140566).

Almost surely, 2^112281131 is an apocalyptic number.

112281131 is a deficient number, since it is larger than the sum of its proper divisors (1).

112281131 is an equidigital number, since it uses as much as digits as its factorization.

112281131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 20.

The square root of 112281131 is about 10596.2791110842. The cubic root of 112281131 is about 482.4314287727.

The spelling of 112281131 in words is "one hundred twelve million, two hundred eighty-one thousand, one hundred thirty-one".