1234242321 has 24 divisors (see below), whose sum is σ = 1799701056. Its totient is φ = 751982400.

The previous prime is 1234242319. The next prime is 1234242343. The reversal of 1234242321 is 1232424321.

It is a happy number.

It is not a de Polignac number, because 1234242321 - 2¹ = 1234242319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1234242291 and 1234242300.

It is not an unprimeable number, because it can be changed into a prime (1234242301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39156 + ... + 63258.

It is an arithmetic number, because the mean of its divisors is an integer number (74987544).

Almost surely, 2^1234242321 is an apocalyptic number.

It is an amenable number.

1234242321 is a deficient number, since it is larger than the sum of its proper divisors (565458735).

1234242321 is a wasteful number, since it uses less digits than its factorization.

1234242321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24233 (or 24220 counting only the distinct ones).

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

The square root of 1234242321 is about 35131.7850528549. The cubic root of 1234242321 is about 1072.6716713259.

Adding to 1234242321 its reverse (1232424321), we get a palindrome (2466666642).

The spelling of 1234242321 in words is "one billion, two hundred thirty-four million, two hundred forty-two thousand, three hundred twenty-one".