1100011020 has 48 divisors (see below), whose sum is σ = 3096188928. Its totient is φ = 291797440.

The previous prime is 1100011013. The next prime is 1100011021. The reversal of 1100011020 is 201100011.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is not an unprimeable number, because it can be changed into a prime (1100011021) 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 15 ways as a sum of consecutive naturals, for example, 36534 + ... + 59453.

It is an arithmetic number, because the mean of its divisors is an integer number (64503936).

Almost surely, 2^1100011020 is an apocalyptic number.

1100011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100011020 is an abundant number, since it is smaller than the sum of its proper divisors (1996177908).

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

1100011020 is a wasteful number, since it uses less digits than its factorization.

1100011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96190 (or 96188 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 1100011020 is about 33166.4140358888. The cubic root of 1100011020 is about 1032.2835626348.

Adding to 1100011020 its reverse (201100011), we get a palindrome (1301111031).

The spelling of 1100011020 in words is "one billion, one hundred million, eleven thousand, twenty".