1324423221 has 16 divisors (see below), whose sum is σ = 1927065600. Its totient is φ = 802417520.

The previous prime is 1324423211. The next prime is 1324423259. The reversal of 1324423221 is 1223244231.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1324423221 - 2⁹ = 1324422709 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1324423191 and 1324423200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1324423211) 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, 154186 + ... + 162548.

It is an arithmetic number, because the mean of its divisors is an integer number (120441600).

Almost surely, 2^1324423221 is an apocalyptic number.

1324423221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1324423221 is a deficient number, since it is larger than the sum of its proper divisors (602642379).

1324423221 is a wasteful number, since it uses less digits than its factorization.

1324423221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13176.

The product of its digits is 2304, while the sum is 24.

The square root of 1324423221 is about 36392.6259151493. The cubic root of 1324423221 is about 1098.1852227832.

Adding to 1324423221 its reverse (1223244231), we get a palindrome (2547667452).

The spelling of 1324423221 in words is "one billion, three hundred twenty-four million, four hundred twenty-three thousand, two hundred twenty-one".