1112411281 has 2 divisors, whose sum is σ = 1112411282. Its totient is φ = 1112411280.

The previous prime is 1112411249. The next prime is 1112411291. The reversal of 1112411281 is 1821142111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1100912400 + 11498881 = 33180^2 + 3391^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112411281 - 2⁵ = 1112411249 is a prime.

It is a super-2 number, since 2×1112411281² = 2474917716192121922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1112411291) 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, 556205640 + 556205641.

It is an arithmetic number, because the mean of its divisors is an integer number (556205641).

Almost surely, 2^1112411281 is an apocalyptic number.

It is an amenable number.

1112411281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112411281 is an equidigital number, since it uses as much as digits as its factorization.

1112411281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 128, while the sum is 22.

The square root of 1112411281 is about 33352.8301797614. The cubic root of 1112411281 is about 1036.1480041900.

Adding to 1112411281 its reverse (1821142111), we get a palindrome (2933553392).

The spelling of 1112411281 in words is "one billion, one hundred twelve million, four hundred eleven thousand, two hundred eighty-one".