1121032300 has 72 divisors (see below), whose sum is σ = 2584643600. Its totient is φ = 420837120.

The previous prime is 1121032267. The next prime is 1121032301. The reversal of 1121032300 is 32301211.

It is not an unprimeable number, because it can be changed into a prime (1121032301) 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 23 ways as a sum of consecutive naturals, for example, 204394 + ... + 209806.

Almost surely, 2^1121032300 is an apocalyptic number.

1121032300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121032300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1292321800).

1121032300 is an abundant number, since it is smaller than the sum of its proper divisors (1463611300).

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

1121032300 is a wasteful number, since it uses less digits than its factorization.

1121032300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555 (or 5548 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1121032300 is about 33481.8204403524. The cubic root of 1121032300 is about 1038.8177826128.

Adding to 1121032300 its reverse (32301211), we get a palindrome (1153333511).

The spelling of 1121032300 in words is "one billion, one hundred twenty-one million, thirty-two thousand, three hundred".