20200185361 has 2 divisors, whose sum is σ = 20200185362. Its totient is φ = 20200185360.

The previous prime is 20200185287. The next prime is 20200185391. The reversal of 20200185361 is 16358100202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12444741136 + 7755444225 = 111556^2 + 88065^2 .

It is a cyclic number.

It is not a de Polignac number, because 20200185361 - 2⁷ = 20200185233 is a prime.

It is not a weakly prime, because it can be changed into another prime (20200185391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100092680 + 10100092681.

It is an arithmetic number, because the mean of its divisors is an integer number (10100092681).

Almost surely, 2^20200185361 is an apocalyptic number.

It is an amenable number.

20200185361 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200185361 is an equidigital number, since it uses as much as digits as its factorization.

20200185361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 20200185361 its reverse (16358100202), we get a palindrome (36558285563).

The spelling of 20200185361 in words is "twenty billion, two hundred million, one hundred eighty-five thousand, three hundred sixty-one".