202020002000087 has 2 divisors, whose sum is σ = 202020002000088. Its totient is φ = 202020002000086.

The previous prime is 202020001999999. The next prime is 202020002000099. The reversal of 202020002000087 is 780000200020202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202020002000087 - 2²⁰ = 202020000951511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202020002002087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101010001000043 + 101010001000044.

It is an arithmetic number, because the mean of its divisors is an integer number (101010001000044).

Almost surely, 2^{202020002000087} is an apocalyptic number.

202020002000087 is a deficient number, since it is larger than the sum of its proper divisors (1).

202020002000087 is an equidigital number, since it uses as much as digits as its factorization.

202020002000087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 23.

Adding to 202020002000087 its reverse (780000200020202), we get a palindrome (982020202020289).

The spelling of 202020002000087 in words is "two hundred two trillion, twenty billion, two million, eighty-seven", and thus it is an aban number.