13003003121 has 4 divisors (see below), whose sum is σ = 13013584500. Its totient is φ = 12992421744.

The previous prime is 13003003099. The next prime is 13003003141. The reversal of 13003003121 is 12130030031.

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 6231523600 + 6771479521 = 78940^2 + 82289^2 .

It is a cyclic number.

It is not a de Polignac number, because 13003003121 - 2³⁰ = 11929261297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13003003096 and 13003003105.

It is not an unprimeable number, because it can be changed into a prime (13003003141) 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, 5288846 + ... + 5291303.

It is an arithmetic number, because the mean of its divisors is an integer number (3253396125).

Almost surely, 2^13003003121 is an apocalyptic number.

It is an amenable number.

13003003121 is a deficient number, since it is larger than the sum of its proper divisors (10581379).

13003003121 is a wasteful number, since it uses less digits than its factorization.

13003003121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10581378.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 13003003121 its reverse (12130030031), we get a palindrome (25133033152).

The spelling of 13003003121 in words is "thirteen billion, three million, three thousand, one hundred twenty-one".