13521231453 has 16 divisors (see below), whose sum is σ = 18536216832. Its totient is φ = 8761824000.

The previous prime is 13521231439. The next prime is 13521231457. The reversal of 13521231453 is 35413212531.

It is not a de Polignac number, because 13521231453 - 2⁶ = 13521231389 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13521231453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13521231457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169488 + ... + 236153.

It is an arithmetic number, because the mean of its divisors is an integer number (1158513552).

Almost surely, 2^13521231453 is an apocalyptic number.

It is an amenable number.

13521231453 is a deficient number, since it is larger than the sum of its proper divisors (5014985379).

13521231453 is a wasteful number, since it uses less digits than its factorization.

13521231453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405956.

The product of its digits is 10800, while the sum is 30.

Adding to 13521231453 its reverse (35413212531), we get a palindrome (48934443984).

The spelling of 13521231453 in words is "thirteen billion, five hundred twenty-one million, two hundred thirty-one thousand, four hundred fifty-three".