11243421241 has 16 divisors (see below), whose sum is σ = 12320006608. Its totient is φ = 10197446400.

The previous prime is 11243421227. The next prime is 11243421251. The reversal of 11243421241 is 14212434211.

It can be written as a sum of positive squares in 8 ways, for example, as 448211241 + 10795210000 = 21171^2 + 103900^2 .

It is a cyclic number.

It is not a de Polignac number, because 11243421241 - 2⁹ = 11243420729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11243421251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 783511 + ... + 797731.

It is an arithmetic number, because the mean of its divisors is an integer number (770000413).

Almost surely, 2^11243421241 is an apocalyptic number.

It is an amenable number.

11243421241 is a deficient number, since it is larger than the sum of its proper divisors (1076585367).

11243421241 is a wasteful number, since it uses less digits than its factorization.

11243421241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15292.

The product of its digits is 1536, while the sum is 25.

Adding to 11243421241 its reverse (14212434211), we get a palindrome (25455855452).

The spelling of 11243421241 in words is "eleven billion, two hundred forty-three million, four hundred twenty-one thousand, two hundred forty-one".