1112811885 has 32 divisors (see below), whose sum is σ = 1987102080. Its totient is φ = 590868864.

The previous prime is 1112811883. The next prime is 1112811923. The reversal of 1112811885 is 5881182111.

It is a happy number.

It is not a de Polignac number, because 1112811885 - 2¹ = 1112811883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112811883) 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 in 31 ways as a sum of consecutive naturals, for example, 12489 + ... + 48801.

It is an arithmetic number, because the mean of its divisors is an integer number (62096940).

Almost surely, 2^1112811885 is an apocalyptic number.

1112811885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1112811885 is a deficient number, since it is larger than the sum of its proper divisors (874290195).

1112811885 is a wasteful number, since it uses less digits than its factorization.

1112811885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36554 (or 36548 counting only the distinct ones).

The product of its digits is 5120, while the sum is 36.

The square root of 1112811885 is about 33358.8351864989. The cubic root of 1112811885 is about 1036.2723692292.

Adding to 1112811885 its reverse (5881182111), we get a palindrome (6993993996).

The spelling of 1112811885 in words is "one billion, one hundred twelve million, eight hundred eleven thousand, eight hundred eighty-five".