505301323543 has 2 divisors, whose sum is σ = 505301323544. Its totient is φ = 505301323542.

The previous prime is 505301323537. The next prime is 505301323613. The reversal of 505301323543 is 345323103505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505301323543 - 2⁵ = 505301323511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505301323499 and 505301323508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505301323523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252650661771 + 252650661772.

It is an arithmetic number, because the mean of its divisors is an integer number (252650661772).

Almost surely, 2^505301323543 is an apocalyptic number.

505301323543 is a deficient number, since it is larger than the sum of its proper divisors (1).

505301323543 is an equidigital number, since it uses as much as digits as its factorization.

505301323543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81000, while the sum is 34.

The spelling of 505301323543 in words is "five hundred five billion, three hundred one million, three hundred twenty-three thousand, five hundred forty-three".