11143262225 has 12 divisors (see below), whose sum is σ = 13832173836. Its totient is φ = 8905236480.

The previous prime is 11143262161. The next prime is 11143262227. The reversal of 11143262225 is 52226234111.

It can be written as a sum of positive squares in 6 ways, for example, as 5414929 + 11137847296 = 2327^2 + 105536^2 .

It is not a de Polignac number, because 11143262225 - 2⁶ = 11143262161 is a prime.

It is a super-2 number, since 2×11143262225² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11143262227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210032 + ... + 257681.

It is an arithmetic number, because the mean of its divisors is an integer number (1152681153).

Almost surely, 2^11143262225 is an apocalyptic number.

It is an amenable number.

11143262225 is a deficient number, since it is larger than the sum of its proper divisors (2688911611).

11143262225 is an equidigital number, since it uses as much as digits as its factorization.

11143262225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468676 (or 468671 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

Adding to 11143262225 its reverse (52226234111), we get a palindrome (63369496336).

The spelling of 11143262225 in words is "eleven billion, one hundred forty-three million, two hundred sixty-two thousand, two hundred twenty-five".