1123013321 has 4 divisors (see below), whose sum is σ = 1123155072. Its totient is φ = 1122871572.

The previous prime is 1123013299. The next prime is 1123013357. The reversal of 1123013321 is 1233103211.

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.

It is a cyclic number.

It is not a de Polignac number, because 1123013321 - 2¹⁴ = 1122996937 is a prime.

It is a super-2 number, since 2×1123013321² = 2522317838286898082, which contains 22 as substring.

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 1123013321.

It is not an unprimeable number, because it can be changed into a prime (1123033321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58241 + ... + 75086.

It is an arithmetic number, because the mean of its divisors is an integer number (280788768).

Almost surely, 2^1123013321 is an apocalyptic number.

It is an amenable number.

1123013321 is a deficient number, since it is larger than the sum of its proper divisors (141751).

1123013321 is an equidigital number, since it uses as much as digits as its factorization.

1123013321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141750.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1123013321 is about 33511.3909141355. The cubic root of 1123013321 is about 1039.4293346678.

Adding to 1123013321 its reverse (1233103211), we get a palindrome (2356116532).

The spelling of 1123013321 in words is "one billion, one hundred twenty-three million, thirteen thousand, three hundred twenty-one".