1243303323 has 16 divisors (see below), whose sum is σ = 1747680000. Its totient is φ = 784032480.

The previous prime is 1243303291. The next prime is 1243303331. The reversal of 1243303323 is 3233033421.

It is a happy number.

It is not a de Polignac number, because 1243303323 - 2⁵ = 1243303291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1243303293 and 1243303302.

It is not an unprimeable number, because it can be changed into a prime (1243303423) 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, 21178 + ... + 54176.

It is an arithmetic number, because the mean of its divisors is an integer number (109230000).

Almost surely, 2^1243303323 is an apocalyptic number.

1243303323 is a deficient number, since it is larger than the sum of its proper divisors (504376677).

1243303323 is a wasteful number, since it uses less digits than its factorization.

1243303323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33682.

The product of its (nonzero) digits is 3888, while the sum is 24.

The square root of 1243303323 is about 35260.5065618746. The cubic root of 1243303323 is about 1075.2902257309.

Adding to 1243303323 its reverse (3233033421), we get a palindrome (4476336744).

The spelling of 1243303323 in words is "one billion, two hundred forty-three million, three hundred three thousand, three hundred twenty-three".