1113223987 has 4 divisors (see below), whose sum is σ = 1115153896. Its totient is φ = 1111294080.

The previous prime is 1113223963. The next prime is 1113224009. The reversal of 1113223987 is 7893223111.

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

It is a cyclic number.

It is not a de Polignac number, because 1113223987 - 2¹¹ = 1113221939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113220987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 964089 + ... + 965242.

It is an arithmetic number, because the mean of its divisors is an integer number (278788474).

Almost surely, 2^1113223987 is an apocalyptic number.

1113223987 is a deficient number, since it is larger than the sum of its proper divisors (1929909).

1113223987 is an equidigital number, since it uses as much as digits as its factorization.

1113223987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929908.

The product of its digits is 18144, while the sum is 37.

The square root of 1113223987 is about 33365.0114191499. The cubic root of 1113223987 is about 1036.4002726113.

The spelling of 1113223987 in words is "one billion, one hundred thirteen million, two hundred twenty-three thousand, nine hundred eighty-seven".