1123322321 has 16 divisors (see below), whose sum is σ = 1251419328. Its totient is φ = 999763200.

The previous prime is 1123322309. The next prime is 1123322341. The reversal of 1123322321 is 1232233211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123322321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123322293 and 1123322302.

It is not an unprimeable number, because it can be changed into a prime (1123322341) 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, 104906 + ... + 115116.

It is an arithmetic number, because the mean of its divisors is an integer number (78213708).

Almost surely, 2^1123322321 is an apocalyptic number.

1123322321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1123322321 is a deficient number, since it is larger than the sum of its proper divisors (128097007).

1123322321 is a wasteful number, since it uses less digits than its factorization.

1123322321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10432.

The product of its digits is 432, while the sum is 20.

The square root of 1123322321 is about 33516.0009696861. Note that the first 3 decimals coincide. The cubic root of 1123322321 is about 1039.5246598091.

Adding to 1123322321 its reverse (1232233211), we get a palindrome (2355555532).

It can be divided in two parts, 11 and 23322321, that added together give a palindrome (23322332).

The spelling of 1123322321 in words is "one billion, one hundred twenty-three million, three hundred twenty-two thousand, three hundred twenty-one".