1243323323 has 4 divisors (see below), whose sum is σ = 1356352728. Its totient is φ = 1130293920.

The previous prime is 1243323313. The next prime is 1243323337. The reversal of 1243323323 is 3233233421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1243323323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1243323292 and 1243323301.

It is not an unprimeable number, because it can be changed into a prime (1243323313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56514686 + ... + 56514707.

It is an arithmetic number, because the mean of its divisors is an integer number (339088182).

Almost surely, 2^1243323323 is an apocalyptic number.

1243323323 is a deficient number, since it is larger than the sum of its proper divisors (113029405).

1243323323 is a wasteful number, since it uses less digits than its factorization.

1243323323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113029404.

The product of its digits is 7776, while the sum is 26.

The square root of 1243323323 is about 35260.7901641469. The cubic root of 1243323323 is about 1075.2959914703.

Adding to 1243323323 its reverse (3233233421), we get a palindrome (4476556744).

The spelling of 1243323323 in words is "one billion, two hundred forty-three million, three hundred twenty-three thousand, three hundred twenty-three".