11521232443452 has 12 divisors (see below), whose sum is σ = 26882875701416. Its totient is φ = 3840410814480.

The previous prime is 11521232443447. The next prime is 11521232443459. The reversal of 11521232443452 is 25434423212511.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 11521232443452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11521232443459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480051351799 + ... + 480051351822.

Almost surely, 2^{11521232443452} is an apocalyptic number.

11521232443452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11521232443452 is an abundant number, since it is smaller than the sum of its proper divisors (15361643257964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11521232443452 is a wasteful number, since it uses less digits than its factorization.

11521232443452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960102703628 (or 960102703626 counting only the distinct ones).

The product of its digits is 230400, while the sum is 39.

Adding to 11521232443452 its reverse (25434423212511), we get a palindrome (36955655655963).

The spelling of 11521232443452 in words is "eleven trillion, five hundred twenty-one billion, two hundred thirty-two million, four hundred forty-three thousand, four hundred fifty-two".