11531244152 has 8 divisors (see below), whose sum is σ = 21621082800. Its totient is φ = 5765622072.

The previous prime is 11531244091. The next prime is 11531244157. The reversal of 11531244152 is 25144213511.

It is a happy number.

11531244152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11531244157) 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 as a sum of consecutive naturals, namely, 720702752 + ... + 720702767.

It is an arithmetic number, because the mean of its divisors is an integer number (2702635350).

Almost surely, 2^11531244152 is an apocalyptic number.

It is an amenable number.

11531244152 is a deficient number, since it is larger than the sum of its proper divisors (10089838648).

11531244152 is a wasteful number, since it uses less digits than its factorization.

11531244152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441405525 (or 1441405521 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

Adding to 11531244152 its reverse (25144213511), we get a palindrome (36675457663).

The spelling of 11531244152 in words is "eleven billion, five hundred thirty-one million, two hundred forty-four thousand, one hundred fifty-two".