1120020555 has 8 divisors (see below), whose sum is σ = 1792032912. Its totient is φ = 597344288.

The previous prime is 1120020553. The next prime is 1120020563. The reversal of 1120020555 is 5550200211.

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 1120020555 - 2¹ = 1120020553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1120020553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37334004 + ... + 37334033.

It is an arithmetic number, because the mean of its divisors is an integer number (224004114).

Almost surely, 2^1120020555 is an apocalyptic number.

1120020555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1120020555 is a deficient number, since it is larger than the sum of its proper divisors (672012357).

1120020555 is an equidigital number, since it uses as much as digits as its factorization.

1120020555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74668045.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 1120020555 is about 33466.7081590048. The cubic root of 1120020555 is about 1038.5051734097.

Adding to 1120020555 its reverse (5550200211), we get a palindrome (6670220766).

The spelling of 1120020555 in words is "one billion, one hundred twenty million, twenty thousand, five hundred fifty-five".