1123321033 has 4 divisors (see below), whose sum is σ = 1139142528. Its totient is φ = 1107499540.

The previous prime is 1123320967. The next prime is 1123321049. The reversal of 1123321033 is 3301233211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3301233211 = 6029 ⋅547559.

It is a cyclic number.

It is not a de Polignac number, because 1123321033 - 2¹⁷ = 1123189961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1123321033.

It is not an unprimeable number, because it can be changed into a prime (1123327033) 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 3 ways as a sum of consecutive naturals, for example, 7910641 + ... + 7910782.

It is an arithmetic number, because the mean of its divisors is an integer number (284785632).

Almost surely, 2^1123321033 is an apocalyptic number.

It is an amenable number.

1123321033 is a deficient number, since it is larger than the sum of its proper divisors (15821495).

1123321033 is an equidigital number, since it uses as much as digits as its factorization.

1123321033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15821494.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1123321033 is about 33515.9817549777. The cubic root of 1123321033 is about 1039.5242625031.

Adding to 1123321033 its reverse (3301233211), we get a palindrome (4424554244).

The spelling of 1123321033 in words is "one billion, one hundred twenty-three million, three hundred twenty-one thousand, thirty-three".