20102113220213 has 2 divisors, whose sum is σ = 20102113220214. Its totient is φ = 20102113220212.

The previous prime is 20102113220159. The next prime is 20102113220219. The reversal of 20102113220213 is 31202231120102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11203627341124 + 8898485879089 = 3347182^2 + 2983033^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102113220213 - 2⁸ = 20102113219957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20102113220219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051056610106 + 10051056610107.

It is an arithmetic number, because the mean of its divisors is an integer number (10051056610107).

Almost surely, 2^{20102113220213} is an apocalyptic number.

It is an amenable number.

20102113220213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102113220213 is an equidigital number, since it uses as much as digits as its factorization.

20102113220213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20102113220213 its reverse (31202231120102), we get a palindrome (51304344340315).

The spelling of 20102113220213 in words is "twenty trillion, one hundred two billion, one hundred thirteen million, two hundred twenty thousand, two hundred thirteen".