13001301121 has 4 divisors (see below), whose sum is σ = 13018121172. Its totient is φ = 12984481072.

The previous prime is 13001301101. The next prime is 13001301139. The reversal of 13001301121 is 12110310031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5804154225 + 7197146896 = 76185^2 + 84836^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13001301121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13001301101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8408866 + ... + 8410411.

It is an arithmetic number, because the mean of its divisors is an integer number (3254530293).

Almost surely, 2^13001301121 is an apocalyptic number.

It is an amenable number.

13001301121 is a deficient number, since it is larger than the sum of its proper divisors (16820051).

13001301121 is an equidigital number, since it uses as much as digits as its factorization.

13001301121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16820050.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 13001301121 its reverse (12110310031), we get a palindrome (25111611152).

The spelling of 13001301121 in words is "thirteen billion, one million, three hundred one thousand, one hundred twenty-one".