20001310213 has 2 divisors, whose sum is σ = 20001310214. Its totient is φ = 20001310212.

The previous prime is 20001310211. The next prime is 20001310249. The reversal of 20001310213 is 31201310002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19159265889 + 842044324 = 138417^2 + 29018^2 .

It is a cyclic number.

It is not a de Polignac number, because 20001310213 - 2¹ = 20001310211 is a prime.

Together with 20001310211, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20001310193 and 20001310202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20001310211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000655106 + 10000655107.

It is an arithmetic number, because the mean of its divisors is an integer number (10000655107).

Almost surely, 2^20001310213 is an apocalyptic number.

It is an amenable number.

20001310213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001310213 is an equidigital number, since it uses as much as digits as its factorization.

20001310213 is an evil number, because the sum of its binary digits is even.

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

Adding to 20001310213 its reverse (31201310002), we get a palindrome (51202620215).

The spelling of 20001310213 in words is "twenty billion, one million, three hundred ten thousand, two hundred thirteen".