13521030205 has 8 divisors (see below), whose sum is σ = 16226116704. Its totient is φ = 10816237200.

The previous prime is 13521030191. The next prime is 13521030227. The reversal of 13521030205 is 50203012531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13521030205 - 2²⁷ = 13386812477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45490 + ... + 170620.

It is an arithmetic number, because the mean of its divisors is an integer number (2028264588).

Almost surely, 2^13521030205 is an apocalyptic number.

It is an amenable number.

13521030205 is a deficient number, since it is larger than the sum of its proper divisors (2705086499).

13521030205 is a wasteful number, since it uses less digits than its factorization.

13521030205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146747.

The product of its (nonzero) digits is 900, while the sum is 22.

Adding to 13521030205 its reverse (50203012531), we get a palindrome (63724042736).

The spelling of 13521030205 in words is "thirteen billion, five hundred twenty-one million, thirty thousand, two hundred five".