1112130881 has 4 divisors (see below), whose sum is σ = 1112210772. Its totient is φ = 1112050992.

The previous prime is 1112130847. The next prime is 1112130893. The reversal of 1112130881 is 1880312111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 919059856 + 193071025 = 30316^2 + 13895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1112130881 is a prime.

It is a super-2 number, since 2×1112130881² = 2473670192947672322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1112130881.

It is not an unprimeable number, because it can be changed into a prime (1112130821) 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 in 3 ways as a sum of consecutive naturals, for example, 13010 + ... + 48923.

It is an arithmetic number, because the mean of its divisors is an integer number (278052693).

Almost surely, 2^1112130881 is an apocalyptic number.

It is an amenable number.

1112130881 is a deficient number, since it is larger than the sum of its proper divisors (79891).

1112130881 is an equidigital number, since it uses as much as digits as its factorization.

1112130881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79890.

The product of its (nonzero) digits is 384, while the sum is 26.

The square root of 1112130881 is about 33348.6263735105. The cubic root of 1112130881 is about 1036.0609379762.

Adding to 1112130881 its reverse (1880312111), we get a palindrome (2992442992).

The spelling of 1112130881 in words is "one billion, one hundred twelve million, one hundred thirty thousand, eight hundred eighty-one".