1110987943 has 4 divisors (see below), whose sum is σ = 1196448568. Its totient is φ = 1025527320.

The previous prime is 1110987923. The next prime is 1110987953. The reversal of 1110987943 is 3497890111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1110987943 is a prime.

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 1110987943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110987923) 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 3 ways as a sum of consecutive naturals, for example, 42730293 + ... + 42730318.

It is an arithmetic number, because the mean of its divisors is an integer number (299112142).

Almost surely, 2^1110987943 is an apocalyptic number.

1110987943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1110987943 is a deficient number, since it is larger than the sum of its proper divisors (85460625).

1110987943 is an equidigital number, since it uses as much as digits as its factorization.

1110987943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85460624.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 1110987943 is about 33331.4857604638. The cubic root of 1110987943 is about 1035.7058960412.

The spelling of 1110987943 in words is "one billion, one hundred ten million, nine hundred eighty-seven thousand, nine hundred forty-three".