18703205302343 has 2 divisors, whose sum is σ = 18703205302344. Its totient is φ = 18703205302342.

The previous prime is 18703205302319. The next prime is 18703205302357. The reversal of 18703205302343 is 34320350230781.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18703205302343 - 2⁶ = 18703205302279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18703205302343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18703205307343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9351602651171 + 9351602651172.

It is an arithmetic number, because the mean of its divisors is an integer number (9351602651172).

Almost surely, 2^{18703205302343} is an apocalyptic number.

18703205302343 is a deficient number, since it is larger than the sum of its proper divisors (1).

18703205302343 is an equidigital number, since it uses as much as digits as its factorization.

18703205302343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 18703205302343 in words is "eighteen trillion, seven hundred three billion, two hundred five million, three hundred two thousand, three hundred forty-three".