13521225313232 has 160 divisors (see below), whose sum is σ = 34142486740992. Its totient is φ = 5033974874112.

The previous prime is 13521225313231. The next prime is 13521225313237. The reversal of 13521225313232 is 23231352212531.

It is a happy number.

13521225313232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13521225313192 and 13521225313201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13521225313231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 563912828 + ... + 563936804.

Almost surely, 2^{13521225313232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13521225313232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17071243370496).

13521225313232 is an abundant number, since it is smaller than the sum of its proper divisors (20621261427760).

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

13521225313232 is a wasteful number, since it uses less digits than its factorization.

13521225313232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46805 (or 46799 counting only the distinct ones).

The product of its digits is 64800, while the sum is 35.

Adding to 13521225313232 its reverse (23231352212531), we get a palindrome (36752577525763).

The spelling of 13521225313232 in words is "thirteen trillion, five hundred twenty-one billion, two hundred twenty-five million, three hundred thirteen thousand, two hundred thirty-two".