20530401102271 has 2 divisors, whose sum is σ = 20530401102272. Its totient is φ = 20530401102270.

The previous prime is 20530401102229. The next prime is 20530401102293. The reversal of 20530401102271 is 17220110403502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20530401102271 - 2¹⁹ = 20530400577983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20530401102221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10265200551135 + 10265200551136.

It is an arithmetic number, because the mean of its divisors is an integer number (10265200551136).

Almost surely, 2^{20530401102271} is an apocalyptic number.

20530401102271 is a deficient number, since it is larger than the sum of its proper divisors (1).

20530401102271 is an equidigital number, since it uses as much as digits as its factorization.

20530401102271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

Adding to 20530401102271 its reverse (17220110403502), we get a palindrome (37750511505773).

The spelling of 20530401102271 in words is "twenty trillion, five hundred thirty billion, four hundred one million, one hundred two thousand, two hundred seventy-one".