1223303243 has 4 divisors (see below), whose sum is σ = 1232935680. Its totient is φ = 1213670808.

The previous prime is 1223303171. The next prime is 1223303281. The reversal of 1223303243 is 3423033221.

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

It is a cyclic number.

It is not a de Polignac number, because 1223303243 - 2²² = 1219108939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223303443) 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, 4816028 + ... + 4816281.

It is an arithmetic number, because the mean of its divisors is an integer number (308233920).

Almost surely, 2^1223303243 is an apocalyptic number.

1223303243 is a deficient number, since it is larger than the sum of its proper divisors (9632437).

1223303243 is an equidigital number, since it uses as much as digits as its factorization.

1223303243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9632436.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 1223303243 is about 34975.7522149274. The cubic root of 1223303243 is about 1069.4932363152.

Adding to 1223303243 its reverse (3423033221), we get a palindrome (4646336464).

The spelling of 1223303243 in words is "one billion, two hundred twenty-three million, three hundred three thousand, two hundred forty-three".