13210003021 has 2 divisors, whose sum is σ = 13210003022. Its totient is φ = 13210003020.

The previous prime is 13210003003. The next prime is 13210003049. The reversal of 13210003021 is 12030001231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6689440521 + 6520562500 = 81789^2 + 80750^2 .

It is a cyclic number.

It is not a de Polignac number, because 13210003021 - 2¹³ = 13209994829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13210002992 and 13210003010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13210003421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6605001510 + 6605001511.

It is an arithmetic number, because the mean of its divisors is an integer number (6605001511).

Almost surely, 2^13210003021 is an apocalyptic number.

It is an amenable number.

13210003021 is a deficient number, since it is larger than the sum of its proper divisors (1).

13210003021 is an equidigital number, since it uses as much as digits as its factorization.

13210003021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 13210003021 its reverse (12030001231), we get a palindrome (25240004252).

The spelling of 13210003021 in words is "thirteen billion, two hundred ten million, three thousand, twenty-one".