13201522521 has 16 divisors (see below), whose sum is σ = 19527678720. Its totient is φ = 7865312720.

The previous prime is 13201522507. The next prime is 13201522553. The reversal of 13201522521 is 12522510231.

It is a cyclic number.

It is not a de Polignac number, because 13201522521 - 2¹⁵ = 13201489753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13201522491 and 13201522500.

It is not an unprimeable number, because it can be changed into a prime (13201522501) 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, 3388275 + ... + 3392168.

It is an arithmetic number, because the mean of its divisors is an integer number (1220479920).

Almost surely, 2^13201522521 is an apocalyptic number.

13201522521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13201522521 is a deficient number, since it is larger than the sum of its proper divisors (6326156199).

13201522521 is a wasteful number, since it uses less digits than its factorization.

13201522521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6780516.

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 13201522521 in words is "thirteen billion, two hundred one million, five hundred twenty-two thousand, five hundred twenty-one".