505123044505103 has 8 divisors (see below), whose sum is σ = 506847946855488. Its totient is φ = 503398148501664.

The previous prime is 505123044504989. The next prime is 505123044505141. The reversal of 505123044505103 is 301505440321505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505123044505103 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 (505123044505603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202665050 + ... + 205142312.

It is an arithmetic number, because the mean of its divisors is an integer number (63355993356936).

Almost surely, 2^{505123044505103} is an apocalyptic number.

505123044505103 is a deficient number, since it is larger than the sum of its proper divisors (1724902350385).

505123044505103 is a wasteful number, since it uses less digits than its factorization.

505123044505103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3173473.

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 505123044505103 its reverse (301505440321505), we get a palindrome (806628484826608).

The spelling of 505123044505103 in words is "five hundred five trillion, one hundred twenty-three billion, forty-four million, five hundred five thousand, one hundred three".