505405352203 has 2 divisors, whose sum is σ = 505405352204. Its totient is φ = 505405352202.

The previous prime is 505405352201. The next prime is 505405352209. The reversal of 505405352203 is 302253504505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505405352203 - 2¹ = 505405352201 is a prime.

Together with 505405352201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (505405352201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252702676101 + 252702676102.

It is an arithmetic number, because the mean of its divisors is an integer number (252702676102).

Almost surely, 2^505405352203 is an apocalyptic number.

505405352203 is a deficient number, since it is larger than the sum of its proper divisors (1).

505405352203 is an equidigital number, since it uses as much as digits as its factorization.

505405352203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90000, while the sum is 34.

Adding to 505405352203 its reverse (302253504505), we get a palindrome (807658856708).

The spelling of 505405352203 in words is "five hundred five billion, four hundred five million, three hundred fifty-two thousand, two hundred three".