13144201121 has 4 divisors (see below), whose sum is σ = 13836001200. Its totient is φ = 12452401044.

The previous prime is 13144201043. The next prime is 13144201141. The reversal of 13144201121 is 12110244131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12110244131 = 127 ⋅95356253.

It is a cyclic number.

It is not a de Polignac number, because 13144201121 - 2¹⁴ = 13144184737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13144201093 and 13144201102.

It is not an unprimeable number, because it can be changed into a prime (13144201141) 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, 345900011 + ... + 345900048.

It is an arithmetic number, because the mean of its divisors is an integer number (3459000300).

Almost surely, 2^13144201121 is an apocalyptic number.

It is an amenable number.

13144201121 is a deficient number, since it is larger than the sum of its proper divisors (691800079).

13144201121 is an equidigital number, since it uses as much as digits as its factorization.

13144201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691800078.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 13144201121 its reverse (12110244131), we get a palindrome (25254445252).

The spelling of 13144201121 in words is "thirteen billion, one hundred forty-four million, two hundred one thousand, one hundred twenty-one".