1100330020 has 12 divisors (see below), whose sum is σ = 2310693084. Its totient is φ = 440132000.

The previous prime is 1100330009. The next prime is 1100330047. The reversal of 1100330020 is 200330011.

It can be written as a sum of positive squares in 2 ways, for example, as 533794816 + 566535204 = 23104^2 + 23802^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1100329979 and 1100330006.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27508231 + ... + 27508270.

It is an arithmetic number, because the mean of its divisors is an integer number (192557757).

Almost surely, 2^1100330020 is an apocalyptic number.

1100330020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100330020 is an abundant number, since it is smaller than the sum of its proper divisors (1210363064).

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

1100330020 is a wasteful number, since it uses less digits than its factorization.

1100330020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55016510 (or 55016508 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 1100330020 is about 33171.2227691413. Note that the first 3 decimals coincide. The cubic root of 1100330020 is about 1032.3833394018.

Adding to 1100330020 its reverse (200330011), we get a palindrome (1300660031).

Subtracting from 1100330020 its reverse (200330011), we obtain a palindrome (900000009).

The spelling of 1100330020 in words is "one billion, one hundred million, three hundred thirty thousand, twenty".