13003121001 has 48 divisors (see below), whose sum is σ = 19591347776. Its totient is φ = 7625363328.

The previous prime is 13003120993. The next prime is 13003121069. The reversal of 13003121001 is 10012130031.

It is not a de Polignac number, because 13003121001 - 2³ = 13003120993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13003121401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6332691 + ... + 6334743.

Almost surely, 2^13003121001 is an apocalyptic number.

It is an amenable number.

13003121001 is a deficient number, since it is larger than the sum of its proper divisors (6588226775).

13003121001 is a wasteful number, since it uses less digits than its factorization.

13003121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422 (or 2399 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 13003121001 its reverse (10012130031), we get a palindrome (23015251032).

The spelling of 13003121001 in words is "thirteen billion, three million, one hundred twenty-one thousand, one".