1103220020 has 24 divisors (see below), whose sum is σ = 2647728384. Its totient is φ = 378246816.

The previous prime is 1103220007. The next prime is 1103220029. The reversal of 1103220020 is 200223011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1103219983 and 1103220010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103220029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3939932 + ... + 3940211.

It is an arithmetic number, because the mean of its divisors is an integer number (110322016).

Almost surely, 2^1103220020 is an apocalyptic number.

1103220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103220020 is an abundant number, since it is smaller than the sum of its proper divisors (1544508364).

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

1103220020 is a wasteful number, since it uses less digits than its factorization.

1103220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7880159 (or 7880157 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1103220020 is about 33214.7560581137. The cubic root of 1103220020 is about 1033.2863956018.

Adding to 1103220020 its reverse (200223011), we get a palindrome (1303443031).

The spelling of 1103220020 in words is "one billion, one hundred three million, two hundred twenty thousand, twenty".