1120020020 has 96 divisors (see below), whose sum is σ = 2819577600. Its totient is φ = 365589504.

The previous prime is 1120019977. The next prime is 1120020023. The reversal of 1120020020 is 200200211.

1120020020 is a modest number, since divided by 20020 gives 1120 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120020023) 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 31 ways as a sum of consecutive naturals, for example, 294491 + ... + 298269.

It is an arithmetic number, because the mean of its divisors is an integer number (29370600).

Almost surely, 2^1120020020 is an apocalyptic number.

1120020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1120020020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1409788800).

1120020020 is an abundant number, since it is smaller than the sum of its proper divisors (1699557580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1120020020 is a wasteful number, since it uses less digits than its factorization.

1120020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897 (or 3895 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1120020020 is about 33466.7001659859. The cubic root of 1120020020 is about 1038.5050080555.

Adding to 1120020020 its reverse (200200211), we get a palindrome (1320220231).

It can be divided in two parts, 1 and 120020020, that added together give a palindrome (120020021).

The spelling of 1120020020 in words is "one billion, one hundred twenty million, twenty thousand, twenty".