20535214087 has 2 divisors, whose sum is σ = 20535214088. Its totient is φ = 20535214086.

The previous prime is 20535214027. The next prime is 20535214093. The reversal of 20535214087 is 78041253502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20535214087 - 2¹⁵ = 20535181319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20535214027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10267607043 + 10267607044.

It is an arithmetic number, because the mean of its divisors is an integer number (10267607044).

Almost surely, 2^20535214087 is an apocalyptic number.

20535214087 is a deficient number, since it is larger than the sum of its proper divisors (1).

20535214087 is an equidigital number, since it uses as much as digits as its factorization.

20535214087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 37.

Adding to 20535214087 its reverse (78041253502), we get a palindrome (98576467589).

The spelling of 20535214087 in words is "twenty billion, five hundred thirty-five million, two hundred fourteen thousand, eighty-seven".