13132242021 has 4 divisors (see below), whose sum is σ = 17509656032. Its totient is φ = 8754828012.

The previous prime is 13132242001. The next prime is 13132242029. The reversal of 13132242021 is 12024223131.

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 not a de Polignac number, because 13132242021 - 2⁹ = 13132241509 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 (13132242029) 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, 2188707001 + ... + 2188707006.

It is an arithmetic number, because the mean of its divisors is an integer number (4377414008).

Almost surely, 2^13132242021 is an apocalyptic number.

It is an amenable number.

13132242021 is a deficient number, since it is larger than the sum of its proper divisors (4377414011).

13132242021 is an equidigital number, since it uses as much as digits as its factorization.

13132242021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4377414010.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13132242021 its reverse (12024223131), we get a palindrome (25156465152).

The spelling of 13132242021 in words is "thirteen billion, one hundred thirty-two million, two hundred forty-two thousand, twenty-one".