210218602423 has 2 divisors, whose sum is σ = 210218602424. Its totient is φ = 210218602422.

The previous prime is 210218602403. The next prime is 210218602453. The reversal of 210218602423 is 324206812012.

210218602423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210218602423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210218602403) 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, 105109301211 + 105109301212.

It is an arithmetic number, because the mean of its divisors is an integer number (105109301212).

Almost surely, 2^210218602423 is an apocalyptic number.

210218602423 is a deficient number, since it is larger than the sum of its proper divisors (1).

210218602423 is an equidigital number, since it uses as much as digits as its factorization.

210218602423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 210218602423 in words is "two hundred ten billion, two hundred eighteen million, six hundred two thousand, four hundred twenty-three".