1123333321 has 4 divisors (see below), whose sum is σ = 1225454544. Its totient is φ = 1021212100.

The previous prime is 1123333319. The next prime is 1123333369. The reversal of 1123333321 is 1233333211.

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: 1233333211 = 11 ⋅112121201.

It is a cyclic number.

It is not a de Polignac number, because 1123333321 - 2¹ = 1123333319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123333292 and 1123333301.

It is not an unprimeable number, because it can be changed into a prime (1123333381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51060595 + ... + 51060616.

It is an arithmetic number, because the mean of its divisors is an integer number (306363636).

Almost surely, 2^1123333321 is an apocalyptic number.

1123333321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1123333321 is a deficient number, since it is larger than the sum of its proper divisors (102121223).

1123333321 is a wasteful number, since it uses less digits than its factorization.

1123333321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102121222.

The product of its digits is 972, while the sum is 22.

The square root of 1123333321 is about 33516.1650700076. The cubic root of 1123333321 is about 1039.5280529385.

Adding to 1123333321 its reverse (1233333211), we get a palindrome (2356666532).

It can be divided in two parts, 11 and 23333321, that added together give a palindrome (23333332).

The spelling of 1123333321 in words is "one billion, one hundred twenty-three million, three hundred thirty-three thousand, three hundred twenty-one".