1100320032 has 48 divisors (see below), whose sum is σ = 3300962112. Its totient is φ = 314376960.

The previous prime is 1100320031. The next prime is 1100320043. The reversal of 1100320032 is 2300230011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1100320031) 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 7 ways as a sum of consecutive naturals, for example, 818019 + ... + 819362.

It is an arithmetic number, because the mean of its divisors is an integer number (68770044).

Almost surely, 2^1100320032 is an apocalyptic number.

1100320032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1100320032 is an abundant number, since it is smaller than the sum of its proper divisors (2200642080).

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

1100320032 is a wasteful number, since it uses less digits than its factorization.

1100320032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637401 (or 1637393 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1100320032 is about 33171.0722166167. The cubic root of 1100320032 is about 1032.3802156493.

Adding to 1100320032 its reverse (2300230011), we get a palindrome (3400550043).

The spelling of 1100320032 in words is "one billion, one hundred million, three hundred twenty thousand, thirty-two".