1100323220 has 48 divisors (see below), whose sum is σ = 2494316160. Its totient is φ = 406471296.

The previous prime is 1100323201. The next prime is 1100323241. The reversal of 1100323220 is 223230011.

It is a happy number.

1100323220 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1100323220² = 2421422376942336800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1100323195 and 1100323204.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 27902 + ... + 54581.

It is an arithmetic number, because the mean of its divisors is an integer number (51964920).

Almost surely, 2^1100323220 is an apocalyptic number.

1100323220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100323220 is an abundant number, since it is smaller than the sum of its proper divisors (1393992940).

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

1100323220 is a wasteful number, since it uses less digits than its factorization.

1100323220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82544 (or 82542 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1100323220 is about 33171.1202705004. The cubic root of 1100323220 is about 1032.3812127001.

Adding to 1100323220 its reverse (223230011), we get a palindrome (1323553231).

The spelling of 1100323220 in words is "one billion, one hundred million, three hundred twenty-three thousand, two hundred twenty".