20242851361 has 2 divisors, whose sum is σ = 20242851362. Its totient is φ = 20242851360.

The previous prime is 20242851347. The next prime is 20242851401. The reversal of 20242851361 is 16315824202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12056040000 + 8186811361 = 109800^2 + 90481^2 .

It is a cyclic number.

It is not a de Polignac number, because 20242851361 - 2¹¹ = 20242849313 is a prime.

It is not a weakly prime, because it can be changed into another prime (20242851061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10121425680 + 10121425681.

It is an arithmetic number, because the mean of its divisors is an integer number (10121425681).

Almost surely, 2^20242851361 is an apocalyptic number.

It is an amenable number.

20242851361 is a deficient number, since it is larger than the sum of its proper divisors (1).

20242851361 is an equidigital number, since it uses as much as digits as its factorization.

20242851361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 20242851361 in words is "twenty billion, two hundred forty-two million, eight hundred fifty-one thousand, three hundred sixty-one".