112011281 has 2 divisors, whose sum is σ = 112011282. Its totient is φ = 112011280.

The previous prime is 112011271. The next prime is 112011287. The reversal of 112011281 is 182110211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111091600 + 919681 = 10540^2 + 959^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112011281 is a prime.

It is a super-2 number, since 2×112011281² = 25093054142521922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (112011287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56005640 + 56005641.

It is an arithmetic number, because the mean of its divisors is an integer number (56005641).

Almost surely, 2^112011281 is an apocalyptic number.

It is an amenable number.

112011281 is a deficient number, since it is larger than the sum of its proper divisors (1).

112011281 is an equidigital number, since it uses as much as digits as its factorization.

112011281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 17.

The square root of 112011281 is about 10583.5382079907. The cubic root of 112011281 is about 482.0446361101.

Adding to 112011281 its reverse (182110211), we get a palindrome (294121492).

The spelling of 112011281 in words is "one hundred twelve million, eleven thousand, two hundred eighty-one".