13232001021 has 4 divisors (see below), whose sum is σ = 17642668032. Its totient is φ = 8821334012.

The previous prime is 13232001001. The next prime is 13232001023. The reversal of 13232001021 is 12010023231.

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 13232001021 - 2²⁹ = 12695130109 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13232001023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2205333501 + ... + 2205333506.

It is an arithmetic number, because the mean of its divisors is an integer number (4410667008).

Almost surely, 2^13232001021 is an apocalyptic number.

It is an amenable number.

13232001021 is a deficient number, since it is larger than the sum of its proper divisors (4410667011).

13232001021 is an equidigital number, since it uses as much as digits as its factorization.

13232001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4410667010.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 13232001021 its reverse (12010023231), we get a palindrome (25242024252).

The spelling of 13232001021 in words is "thirteen billion, two hundred thirty-two million, one thousand, twenty-one".