8420743052903 has 2 divisors, whose sum is σ = 8420743052904. Its totient is φ = 8420743052902.

The previous prime is 8420743052881. The next prime is 8420743052977. The reversal of 8420743052903 is 3092503470248.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8420743052903 - 2²⁰ = 8420742004327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8420743052993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4210371526451 + 4210371526452.

It is an arithmetic number, because the mean of its divisors is an integer number (4210371526452).

Almost surely, 2^{8420743052903} is an apocalyptic number.

8420743052903 is a deficient number, since it is larger than the sum of its proper divisors (1).

8420743052903 is an equidigital number, since it uses as much as digits as its factorization.

8420743052903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 8420743052903 in words is "eight trillion, four hundred twenty billion, seven hundred forty-three million, fifty-two thousand, nine hundred three".