13132312230221 has 4 divisors (see below), whose sum is σ = 13141387775712. Its totient is φ = 13123236684732.

The previous prime is 13132312230179. The next prime is 13132312230253. The reversal of 13132312230221 is 12203221323131.

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 13132312230221 - 2¹⁸ = 13132311968077 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 (13132312530221) 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, 4537770575 + ... + 4537773468.

It is an arithmetic number, because the mean of its divisors is an integer number (3285346943928).

Almost surely, 2^{13132312230221} is an apocalyptic number.

It is an amenable number.

13132312230221 is a deficient number, since it is larger than the sum of its proper divisors (9075545491).

13132312230221 is an equidigital number, since it uses as much as digits as its factorization.

13132312230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9075545490.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 13132312230221 its reverse (12203221323131), we get a palindrome (25335533553352).

The spelling of 13132312230221 in words is "thirteen trillion, one hundred thirty-two billion, three hundred twelve million, two hundred thirty thousand, two hundred twenty-one".