1223541343 has 4 divisors (see below), whose sum is σ = 1223910688. Its totient is φ = 1223172000.

The previous prime is 1223541313. The next prime is 1223541359. The reversal of 1223541343 is 3431453221.

It is a happy number.

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 1223541343 - 2¹⁷ = 1223410271 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 (1223541313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179658 + ... + 186343.

It is an arithmetic number, because the mean of its divisors is an integer number (305977672).

Almost surely, 2^1223541343 is an apocalyptic number.

1223541343 is a deficient number, since it is larger than the sum of its proper divisors (369345).

1223541343 is an equidigital number, since it uses as much as digits as its factorization.

1223541343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369344.

The product of its digits is 8640, while the sum is 28.

The square root of 1223541343 is about 34979.1558360118. The cubic root of 1223541343 is about 1069.5626194442.

Adding to 1223541343 its reverse (3431453221), we get a palindrome (4654994564).

The spelling of 1223541343 in words is "one billion, two hundred twenty-three million, five hundred forty-one thousand, three hundred forty-three".