1121324403 has 16 divisors (see below), whose sum is σ = 1591262496. Its totient is φ = 699924480.

The previous prime is 1121324401. The next prime is 1121324423. The reversal of 1121324403 is 3044231211.

It is not a de Polignac number, because 1121324403 - 2¹ = 1121324401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121324403.

It is not an unprimeable number, because it can be changed into a prime (1121324401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47118 + ... + 66803.

It is an arithmetic number, because the mean of its divisors is an integer number (99453906).

Almost surely, 2^1121324403 is an apocalyptic number.

1121324403 is a deficient number, since it is larger than the sum of its proper divisors (469938093).

1121324403 is a wasteful number, since it uses less digits than its factorization.

1121324403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114134.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1121324403 is about 33486.1822697064. The cubic root of 1121324403 is about 1038.9080016722.

Adding to 1121324403 its reverse (3044231211), we get a palindrome (4165555614).

The spelling of 1121324403 in words is "one billion, one hundred twenty-one million, three hundred twenty-four thousand, four hundred three".