1121384563 has 8 divisors (see below), whose sum is σ = 1237100256. Its totient is φ = 1009876800.

The previous prime is 1121384501. The next prime is 1121384569. The reversal of 1121384563 is 3654831211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121384563 - 2¹⁷ = 1121253491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121384569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051423 + ... + 1052488.

It is an arithmetic number, because the mean of its divisors is an integer number (154637532).

Almost surely, 2^1121384563 is an apocalyptic number.

1121384563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1121384563 is a deficient number, since it is larger than the sum of its proper divisors (115715693).

1121384563 is a wasteful number, since it uses less digits than its factorization.

1121384563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103965.

The product of its digits is 17280, while the sum is 34.

The square root of 1121384563 is about 33487.0805386197. The cubic root of 1121384563 is about 1038.9265807701.

The spelling of 1121384563 in words is "one billion, one hundred twenty-one million, three hundred eighty-four thousand, five hundred sixty-three".