213445544303 has 2 divisors, whose sum is σ = 213445544304. Its totient is φ = 213445544302.

The previous prime is 213445544269. The next prime is 213445544317. The reversal of 213445544303 is 303445544312.

213445544303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213445544303 - 2⁶ = 213445544239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213445544363) 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, 106722772151 + 106722772152.

It is an arithmetic number, because the mean of its divisors is an integer number (106722772152).

Almost surely, 2^213445544303 is an apocalyptic number.

213445544303 is a deficient number, since it is larger than the sum of its proper divisors (1).

213445544303 is an equidigital number, since it uses as much as digits as its factorization.

213445544303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 38.

Subtracting 213445544303 from its reverse (303445544312), we obtain a palindrome (90000000009).

The spelling of 213445544303 in words is "two hundred thirteen billion, four hundred forty-five million, five hundred forty-four thousand, three hundred three".