1223043343 has 4 divisors (see below), whose sum is σ = 1223188648. Its totient is φ = 1222898040.

The previous prime is 1223043323. The next prime is 1223043383. The reversal of 1223043343 is 3433403221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3433403221 = 223 ⋅15396427.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223043343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223043313) 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, 59196 + ... + 77137.

It is an arithmetic number, because the mean of its divisors is an integer number (305797162).

Almost surely, 2^1223043343 is an apocalyptic number.

1223043343 is a deficient number, since it is larger than the sum of its proper divisors (145305).

1223043343 is an equidigital number, since it uses as much as digits as its factorization.

1223043343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145304.

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 1223043343 is about 34972.0365863928. The cubic root of 1223043343 is about 1069.4174903160.

Adding to 1223043343 its reverse (3433403221), we get a palindrome (4656446564).

The spelling of 1223043343 in words is "one billion, two hundred twenty-three million, forty-three thousand, three hundred forty-three".