1223411321 has 4 divisors (see below), whose sum is σ = 1334630544. Its totient is φ = 1112192100.

The previous prime is 1223411317. The next prime is 1223411339. The reversal of 1223411321 is 1231143221.

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 1223411321 - 2² = 1223411317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1223411293 and 1223411302.

It is not an unprimeable number, because it can be changed into a prime (1223411381) 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, 55609595 + ... + 55609616.

It is an arithmetic number, because the mean of its divisors is an integer number (333657636).

Almost surely, 2^1223411321 is an apocalyptic number.

1223411321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1223411321 is a deficient number, since it is larger than the sum of its proper divisors (111219223).

1223411321 is a wasteful number, since it uses less digits than its factorization.

1223411321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111219222.

The product of its digits is 288, while the sum is 20.

The square root of 1223411321 is about 34977.2972226271. The cubic root of 1223411321 is about 1069.5247317183.

Adding to 1223411321 its reverse (1231143221), we get a palindrome (2454554542).

The spelling of 1223411321 in words is "one billion, two hundred twenty-three million, four hundred eleven thousand, three hundred twenty-one".