13201200505525 has 6 divisors (see below), whose sum is σ = 16369488626882. Its totient is φ = 10560960404400.

The previous prime is 13201200505489. The next prime is 13201200505637. The reversal of 13201200505525 is 52550500210231.

It can be written as a sum of positive squares in 3 ways, for example, as 92101324324 + 13109099181201 = 303482^2 + 3620649^2 .

It is not a de Polignac number, because 13201200505525 - 2¹³ = 13201200497333 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 5 ways as a sum of consecutive naturals, for example, 264024010086 + ... + 264024010135.

Almost surely, 2^{13201200505525} is an apocalyptic number.

It is an amenable number.

13201200505525 is a deficient number, since it is larger than the sum of its proper divisors (3168288121357).

13201200505525 is an equidigital number, since it uses as much as digits as its factorization.

13201200505525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528048020231 (or 528048020226 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 13201200505525 its reverse (52550500210231), we get a palindrome (65751700715756).

The spelling of 13201200505525 in words is "thirteen trillion, two hundred one billion, two hundred million, five hundred five thousand, five hundred twenty-five".