1100133243 has 24 divisors (see below), whose sum is σ = 1766260080. Its totient is φ = 654164160.

The previous prime is 1100133227. The next prime is 1100133283. The reversal of 1100133243 is 3423310011.

1100133243 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1100133243 - 2⁴ = 1100133227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1100133283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99588 + ... + 110081.

It is an arithmetic number, because the mean of its divisors is an integer number (73594170).

Almost surely, 2^1100133243 is an apocalyptic number.

1100133243 is a deficient number, since it is larger than the sum of its proper divisors (666126837).

1100133243 is a wasteful number, since it uses less digits than its factorization.

1100133243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209739 (or 209736 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1100133243 is about 33168.2565565331. The cubic root of 1100133243 is about 1032.3217938037.

Adding to 1100133243 its reverse (3423310011), we get a palindrome (4523443254).

It can be divided in two parts, 11001 and 33243, that added together give a palindrome (44244).

The spelling of 1100133243 in words is "one billion, one hundred million, one hundred thirty-three thousand, two hundred forty-three".