13521134302 has 16 divisors (see below), whose sum is σ = 21861971712. Its totient is φ = 6234769440.

The previous prime is 13521134213. The next prime is 13521134309. The reversal of 13521134302 is 20343112531.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13521134309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210949 + ... + 267472.

It is an arithmetic number, because the mean of its divisors is an integer number (1366373232).

Almost surely, 2^13521134302 is an apocalyptic number.

13521134302 is a deficient number, since it is larger than the sum of its proper divisors (8340837410).

13521134302 is a wasteful number, since it uses less digits than its factorization.

13521134302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479523.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 13521134302 its reverse (20343112531), we get a palindrome (33864246833).

The spelling of 13521134302 in words is "thirteen billion, five hundred twenty-one million, one hundred thirty-four thousand, three hundred two".