20210012320213 has 2 divisors, whose sum is σ = 20210012320214. Its totient is φ = 20210012320212.

The previous prime is 20210012320189. The next prime is 20210012320217. The reversal of 20210012320213 is 31202321001202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10274448122884 + 9935564197329 = 3205378^2 + 3152073^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20210012320213 is a prime.

It is a super-2 number, since 2×20210012320213² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20210012320217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105006160106 + 10105006160107.

It is an arithmetic number, because the mean of its divisors is an integer number (10105006160107).

Almost surely, 2^{20210012320213} is an apocalyptic number.

It is an amenable number.

20210012320213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210012320213 is an equidigital number, since it uses as much as digits as its factorization.

20210012320213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20210012320213 its reverse (31202321001202), we get a palindrome (51412333321415).

The spelling of 20210012320213 in words is "twenty trillion, two hundred ten billion, twelve million, three hundred twenty thousand, two hundred thirteen".