1243230324 has 72 divisors (see below), whose sum is σ = 3425897664. Its totient is φ = 343728000.

The previous prime is 1243230299. The next prime is 1243230337. The reversal of 1243230324 is 4230323421.

It is a junction number, because it is equal to n+sod(n) for n = 1243230294 and 1243230303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73024 + ... + 88424.

It is an arithmetic number, because the mean of its divisors is an integer number (47581912).

Almost surely, 2^1243230324 is an apocalyptic number.

1243230324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1243230324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1712948832).

1243230324 is an abundant number, since it is smaller than the sum of its proper divisors (2182667340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243230324 is a wasteful number, since it uses less digits than its factorization.

1243230324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15477 (or 15444 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 1243230324 is about 35259.4714084032. The cubic root of 1243230324 is about 1075.2691805453.

Adding to 1243230324 its reverse (4230323421), we get a palindrome (5473553745).

The spelling of 1243230324 in words is "one billion, two hundred forty-three million, two hundred thirty thousand, three hundred twenty-four".