20020020026213 has 2 divisors, whose sum is σ = 20020020026214. Its totient is φ = 20020020026212.

The previous prime is 20020020026143. The next prime is 20020020026239. The reversal of 20020020026213 is 31262002002002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19339035278689 + 680984747524 = 4397617^2 + 825218^2 .

It is a cyclic number.

It is not a de Polignac number, because 20020020026213 - 2¹⁰ = 20020020025189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020020056213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010010013106 + 10010010013107.

It is an arithmetic number, because the mean of its divisors is an integer number (10010010013107).

Almost surely, 2^{20020020026213} is an apocalyptic number.

It is an amenable number.

20020020026213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020020026213 is an equidigital number, since it uses as much as digits as its factorization.

20020020026213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20020020026213 its reverse (31262002002002), we get a palindrome (51282022028215).

The spelling of 20020020026213 in words is "twenty trillion, twenty billion, twenty million, twenty-six thousand, two hundred thirteen".