505421041303 has 16 divisors (see below), whose sum is σ = 542725630720. Its totient is φ = 469282657536.

The previous prime is 505421041253. The next prime is 505421041337. The reversal of 505421041303 is 303140124505.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505421041303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505421041003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1141425 + ... + 1521082.

It is an arithmetic number, because the mean of its divisors is an integer number (33920351920).

Almost surely, 2^505421041303 is an apocalyptic number.

505421041303 is a deficient number, since it is larger than the sum of its proper divisors (37304589417).

505421041303 is a wasteful number, since it uses less digits than its factorization.

505421041303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662726.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 505421041303 its reverse (303140124505), we get a palindrome (808561165808).

The spelling of 505421041303 in words is "five hundred five billion, four hundred twenty-one million, forty-one thousand, three hundred three".