13211002001 has 12 divisors (see below), whose sum is σ = 13592492004. Its totient is φ = 12832579200.

The previous prime is 13211001961. The next prime is 13211002027. The reversal of 13211002001 is 10020011231.

It can be written as a sum of positive squares in 2 ways, for example, as 7361811601 + 5849190400 = 85801^2 + 76480^2 .

It is not a de Polignac number, because 13211002001 - 2¹⁰ = 13211000977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13211002031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2339141 + ... + 2344781.

It is an arithmetic number, because the mean of its divisors is an integer number (1132707667).

Almost surely, 2^13211002001 is an apocalyptic number.

It is an amenable number.

13211002001 is a deficient number, since it is larger than the sum of its proper divisors (381490003).

13211002001 is an frugal number, since it uses more digits than its factorization.

13211002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6160 (or 5921 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 13211002001 its reverse (10020011231), we get a palindrome (23231013232).

The spelling of 13211002001 in words is "thirteen billion, two hundred eleven million, two thousand, one".