1100205056 has 44 divisors (see below), whose sum is σ = 2203587312. Its totient is φ = 549040128.

The previous prime is 1100205053. The next prime is 1100205083. The reversal of 1100205056 is 6505020011.

It is not an unprimeable number, because it can be changed into a prime (1100205053) 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, 1006046 + ... + 1007138.

Almost surely, 2^1100205056 is an apocalyptic number.

1100205056 is a gapful number since it is divisible by the number (16) 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 1100205056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1101793656).

1100205056 is an abundant number, since it is smaller than the sum of its proper divisors (1103382256).

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

1100205056 is an equidigital number, since it uses as much as digits as its factorization.

1100205056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096 (or 2078 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1100205056 is about 33169.3390950136. The cubic root of 1100205056 is about 1032.3442554805.

Adding to 1100205056 its reverse (6505020011), we get a palindrome (7605225067).

The spelling of 1100205056 in words is "one billion, one hundred million, two hundred five thousand, fifty-six".