20206202711 has 2 divisors, whose sum is σ = 20206202712. Its totient is φ = 20206202710.

The previous prime is 20206202629. The next prime is 20206202759. The reversal of 20206202711 is 11720260202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20206202711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20206202761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10103101355 + 10103101356.

It is an arithmetic number, because the mean of its divisors is an integer number (10103101356).

Almost surely, 2^20206202711 is an apocalyptic number.

20206202711 is a deficient number, since it is larger than the sum of its proper divisors (1).

20206202711 is an equidigital number, since it uses as much as digits as its factorization.

20206202711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 20206202711 its reverse (11720260202), we get a palindrome (31926462913).

The spelling of 20206202711 in words is "twenty billion, two hundred six million, two hundred two thousand, seven hundred eleven".