13132523204221 has 4 divisors (see below), whose sum is σ = 13139774737344. Its totient is φ = 13125271671100.

The previous prime is 13132523204197. The next prime is 13132523204237. The reversal of 13132523204221 is 12240232523131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13132523204221 - 2¹¹ = 13132523202173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13132523204261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3625763845 + ... + 3625767466.

It is an arithmetic number, because the mean of its divisors is an integer number (3284943684336).

Almost surely, 2^{13132523204221} is an apocalyptic number.

It is an amenable number.

13132523204221 is a deficient number, since it is larger than the sum of its proper divisors (7251533123).

13132523204221 is an equidigital number, since it uses as much as digits as its factorization.

13132523204221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7251533122.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 13132523204221 its reverse (12240232523131), we get a palindrome (25372755727352).

The spelling of 13132523204221 in words is "thirteen trillion, one hundred thirty-two billion, five hundred twenty-three million, two hundred four thousand, two hundred twenty-one".