13144201021 has 4 divisors (see below), whose sum is σ = 15021944032. Its totient is φ = 11266458012.

The previous prime is 13144200967. The next prime is 13144201027. The reversal of 13144201021 is 12010244131.

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 13144201021 - 2¹⁵ = 13144168253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13144201021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13144201027) 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, 938871495 + ... + 938871508.

It is an arithmetic number, because the mean of its divisors is an integer number (3755486008).

Almost surely, 2^13144201021 is an apocalyptic number.

It is an amenable number.

13144201021 is a deficient number, since it is larger than the sum of its proper divisors (1877743011).

13144201021 is an equidigital number, since it uses as much as digits as its factorization.

13144201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877743010.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 13144201021 its reverse (12010244131), we get a palindrome (25154445152).

The spelling of 13144201021 in words is "thirteen billion, one hundred forty-four million, two hundred one thousand, twenty-one".