505243132103 has 16 divisors (see below), whose sum is σ = 517672848000. Its totient is φ = 492944653152.

The previous prime is 505243132099. The next prime is 505243132109. The reversal of 505243132103 is 301231342505.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 505243132103 - 2² = 505243132099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505243132109) 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, 30655301 + ... + 30671777.

It is an arithmetic number, because the mean of its divisors is an integer number (32354553000).

Almost surely, 2^505243132103 is an apocalyptic number.

505243132103 is a deficient number, since it is larger than the sum of its proper divisors (12429715897).

505243132103 is a wasteful number, since it uses less digits than its factorization.

505243132103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20414.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 505243132103 its reverse (301231342505), we get a palindrome (806474474608).

The spelling of 505243132103 in words is "five hundred five billion, two hundred forty-three million, one hundred thirty-two thousand, one hundred three".