1120320545 has 8 divisors (see below), whose sum is σ = 1345747200. Its totient is φ = 895348080.

The previous prime is 1120320527. The next prime is 1120320629. The reversal of 1120320545 is 5450230211.

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

It is not a de Polignac number, because 1120320545 - 2¹⁴ = 1120304161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1120320545.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 108095 + ... + 118004.

It is an arithmetic number, because the mean of its divisors is an integer number (168218400).

Almost surely, 2^1120320545 is an apocalyptic number.

It is an amenable number.

1120320545 is a deficient number, since it is larger than the sum of its proper divisors (225426655).

1120320545 is an equidigital number, since it uses as much as digits as its factorization.

1120320545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227095.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1120320545 is about 33471.1897756862. The cubic root of 1120320545 is about 1038.5978840167.

Adding to 1120320545 its reverse (5450230211), we get a palindrome (6570550756).

The spelling of 1120320545 in words is "one billion, one hundred twenty million, three hundred twenty thousand, five hundred forty-five".