13531021152 has 96 divisors (see below), whose sum is σ = 40787349120. Its totient is φ = 3884497920.

The previous prime is 13531021151. The next prime is 13531021169. The reversal of 13531021152 is 25112013531.

13531021152 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 (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531021151) 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 in 15 ways as a sum of consecutive naturals, for example, 317133 + ... + 357260.

It is an arithmetic number, because the mean of its divisors is an integer number (424868220).

Almost surely, 2^13531021152 is an apocalyptic number.

13531021152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13531021152 is an abundant number, since it is smaller than the sum of its proper divisors (27256327968).

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

13531021152 is a wasteful number, since it uses less digits than its factorization.

13531021152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674436 (or 674428 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 13531021152 its reverse (25112013531), we get a palindrome (38643034683).

The spelling of 13531021152 in words is "thirteen billion, five hundred thirty-one million, twenty-one thousand, one hundred fifty-two".