200421442110511 has 2 divisors, whose sum is σ = 200421442110512. Its totient is φ = 200421442110510.

The previous prime is 200421442110509. The next prime is 200421442110577. The reversal of 200421442110511 is 115011244124002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200421442110511 - 2¹ = 200421442110509 is a prime.

It is a super-2 number, since 2×200421442110511² (a number of 29 digits) contains 22 as substring.

Together with 200421442110509, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 200421442110511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200421442110611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100210721055255 + 100210721055256.

It is an arithmetic number, because the mean of its divisors is an integer number (100210721055256).

Almost surely, 2^{200421442110511} is an apocalyptic number.

200421442110511 is a deficient number, since it is larger than the sum of its proper divisors (1).

200421442110511 is an equidigital number, since it uses as much as digits as its factorization.

200421442110511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2560, while the sum is 28.

Adding to 200421442110511 its reverse (115011244124002), we get a palindrome (315432686234513).

The spelling of 200421442110511 in words is "two hundred trillion, four hundred twenty-one billion, four hundred forty-two million, one hundred ten thousand, five hundred eleven".