505534204123 has 8 divisors (see below), whose sum is σ = 544604860800. Its totient is φ = 466489748928.

The previous prime is 505534204117. The next prime is 505534204127. The reversal of 505534204123 is 321402435505.

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

It is a cyclic number.

It is not a de Polignac number, because 505534204123 - 2⁹ = 505534203611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505534204127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6510283 + ... + 6587476.

It is an arithmetic number, because the mean of its divisors is an integer number (68075607600).

Almost surely, 2^505534204123 is an apocalyptic number.

505534204123 is a deficient number, since it is larger than the sum of its proper divisors (39070656677).

505534204123 is a wasteful number, since it uses less digits than its factorization.

505534204123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13100741.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 505534204123 its reverse (321402435505), we get a palindrome (826936639628).

The spelling of 505534204123 in words is "five hundred five billion, five hundred thirty-four million, two hundred four thousand, one hundred twenty-three".