11231311342225 has 12 divisors (see below), whose sum is σ = 14998120377436. Its totient is φ = 8293891452480.

The previous prime is 11231311342183. The next prime is 11231311342253. The reversal of 11231311342225 is 52224311313211.

It can be written as a sum of positive squares in 6 ways, for example, as 968303232576 + 10263008109649 = 984024^2 + 3203593^2 .

It is not a de Polignac number, because 11231311342225 - 2¹⁵ = 11231311309457 is a prime.

It is a super-2 number, since 2×11231311342225² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17278940202 + ... + 17278940851.

Almost surely, 2^{11231311342225} is an apocalyptic number.

It is an amenable number.

11231311342225 is a deficient number, since it is larger than the sum of its proper divisors (3766809035211).

11231311342225 is a wasteful number, since it uses less digits than its factorization.

11231311342225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34557881076 (or 34557881071 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

Adding to 11231311342225 its reverse (52224311313211), we get a palindrome (63455622655436).

The spelling of 11231311342225 in words is "eleven trillion, two hundred thirty-one billion, three hundred eleven million, three hundred forty-two thousand, two hundred twenty-five".