20242771273 has 2 divisors, whose sum is σ = 20242771274. Its totient is φ = 20242771272.

The previous prime is 20242771271. The next prime is 20242771291. The reversal of 20242771273 is 37217724202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14788505664 + 5454265609 = 121608^2 + 73853^2 .

It is a cyclic number.

It is not a de Polignac number, because 20242771273 - 2¹ = 20242771271 is a prime.

Together with 20242771271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20242771271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10121385636 + 10121385637.

It is an arithmetic number, because the mean of its divisors is an integer number (10121385637).

Almost surely, 2^20242771273 is an apocalyptic number.

It is an amenable number.

20242771273 is a deficient number, since it is larger than the sum of its proper divisors (1).

20242771273 is an equidigital number, since it uses as much as digits as its factorization.

20242771273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 37.

The spelling of 20242771273 in words is "twenty billion, two hundred forty-two million, seven hundred seventy-one thousand, two hundred seventy-three".