20200275187 has 2 divisors, whose sum is σ = 20200275188. Its totient is φ = 20200275186.

The previous prime is 20200275181. The next prime is 20200275197. The reversal of 20200275187 is 78157200202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20200275187 - 2⁷ = 20200275059 is a prime.

It is a super-2 number, since 2×20200275187² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20200275181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100137593 + 10100137594.

It is an arithmetic number, because the mean of its divisors is an integer number (10100137594).

Almost surely, 2^20200275187 is an apocalyptic number.

20200275187 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200275187 is an equidigital number, since it uses as much as digits as its factorization.

20200275187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15680, while the sum is 34.

Adding to 20200275187 its reverse (78157200202), we get a palindrome (98357475389).

The spelling of 20200275187 in words is "twenty billion, two hundred million, two hundred seventy-five thousand, one hundred eighty-seven".