11243421343 has 16 divisors (see below), whose sum is σ = 14057971200. Its totient is φ = 8735983200.

The previous prime is 11243421311. The next prime is 11243421367. The reversal of 11243421343 is 34312434211.

It is a happy number.

It is not a de Polignac number, because 11243421343 - 2⁵ = 11243421311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11243421373) 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, 182323 + ... + 236068.

It is an arithmetic number, because the mean of its divisors is an integer number (878623200).

Almost surely, 2^11243421343 is an apocalyptic number.

11243421343 is a deficient number, since it is larger than the sum of its proper divisors (2814549857).

11243421343 is a wasteful number, since it uses less digits than its factorization.

11243421343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418758.

The product of its digits is 6912, while the sum is 28.

Adding to 11243421343 its reverse (34312434211), we get a palindrome (45555855554).

The spelling of 11243421343 in words is "eleven billion, two hundred forty-three million, four hundred twenty-one thousand, three hundred forty-three".