21310201210213 has 2 divisors, whose sum is σ = 21310201210214. Its totient is φ = 21310201210212.

The previous prime is 21310201210141. The next prime is 21310201210229. The reversal of 21310201210213 is 31201210201312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11033445085569 + 10276756124644 = 3321663^2 + 3205738^2 .

It is a cyclic number.

It is not a de Polignac number, because 21310201210213 - 2⁹ = 21310201209701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21310201210273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10655100605106 + 10655100605107.

It is an arithmetic number, because the mean of its divisors is an integer number (10655100605107).

Almost surely, 2^{21310201210213} is an apocalyptic number.

It is an amenable number.

21310201210213 is a deficient number, since it is larger than the sum of its proper divisors (1).

21310201210213 is an equidigital number, since it uses as much as digits as its factorization.

21310201210213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21310201210213 its reverse (31201210201312), we get a palindrome (52511411411525).

The spelling of 21310201210213 in words is "twenty-one trillion, three hundred ten billion, two hundred one million, two hundred ten thousand, two hundred thirteen".