1103133144 has 64 divisors (see below), whose sum is σ = 2785507200. Its totient is φ = 364041216.

The previous prime is 1103133139. The next prime is 1103133209. The reversal of 1103133144 is 4413313011.

It is a self number, because there is not a number n which added to its sum of digits gives 1103133144.

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, 1638792 + ... + 1639464.

It is an arithmetic number, because the mean of its divisors is an integer number (43523550).

Almost surely, 2^1103133144 is an apocalyptic number.

It is an amenable number.

1103133144 is an abundant number, since it is smaller than the sum of its proper divisors (1682374056).

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

1103133144 is a wasteful number, since it uses less digits than its factorization.

1103133144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264 (or 1260 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1103133144 is about 33213.4482401331. The cubic root of 1103133144 is about 1033.2592719263.

Adding to 1103133144 its reverse (4413313011), we get a palindrome (5516446155).

The spelling of 1103133144 in words is "one billion, one hundred three million, one hundred thirty-three thousand, one hundred forty-four".