20102701 has 2 divisors, whose sum is σ = 20102702. Its totient is φ = 20102700.

The previous prime is 20102689. The next prime is 20102707. The reversal of 20102701 is 10720102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19980900 + 121801 = 4470^2 + 349^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102701 - 2⁷ = 20102573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20102707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051350 + 10051351.

It is an arithmetic number, because the mean of its divisors is an integer number (10051351).

Almost surely, 2^20102701 is an apocalyptic number.

It is an amenable number.

20102701 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102701 is an equidigital number, since it uses as much as digits as its factorization.

20102701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 20102701 is about 4483.6035730203. The cubic root of 20102701 is about 271.9055909736.

Adding to 20102701 its reverse (10720102), we get a palindrome (30822803).

The spelling of 20102701 in words is "twenty million, one hundred two thousand, seven hundred one".