210363454664423 has 2 divisors, whose sum is σ = 210363454664424. Its totient is φ = 210363454664422.

The previous prime is 210363454664401. The next prime is 210363454664453. The reversal of 210363454664423 is 324466454363012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210363454664423 - 2¹² = 210363454660327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210363454664453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105181727332211 + 105181727332212.

It is an arithmetic number, because the mean of its divisors is an integer number (105181727332212).

Almost surely, 2^{210363454664423} is an apocalyptic number.

210363454664423 is a deficient number, since it is larger than the sum of its proper divisors (1).

210363454664423 is an equidigital number, since it uses as much as digits as its factorization.

210363454664423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29859840, while the sum is 53.

The spelling of 210363454664423 in words is "two hundred ten trillion, three hundred sixty-three billion, four hundred fifty-four million, six hundred sixty-four thousand, four hundred twenty-three".