13001044121 has 8 divisors (see below), whose sum is σ = 14002970184. Its totient is φ = 11999381760.

The previous prime is 13001044099. The next prime is 13001044123. The reversal of 13001044121 is 12144010031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 726841600 + 12274202521 = 26960^2 + 110789^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13001044121 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 13001044121.

It is not an unprimeable number, because it can be changed into a prime (13001044123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43175 + ... + 166931.

It is an arithmetic number, because the mean of its divisors is an integer number (1750371273).

Almost surely, 2^13001044121 is an apocalyptic number.

It is an amenable number.

13001044121 is a deficient number, since it is larger than the sum of its proper divisors (1001926063).

13001044121 is a wasteful number, since it uses less digits than its factorization.

13001044121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131851.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 13001044121 its reverse (12144010031), we get a palindrome (25145054152).

The spelling of 13001044121 in words is "thirteen billion, one million, forty-four thousand, one hundred twenty-one".