505122005130 has 128 divisors (see below), whose sum is σ = 1311239356416. Its totient is φ = 124167859200.

The previous prime is 505122005123. The next prime is 505122005177. The reversal of 505122005130 is 31500221505.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 505122005130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5105997 + ... + 5203983.

It is an arithmetic number, because the mean of its divisors is an integer number (10244057472).

Almost surely, 2^505122005130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505122005130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (655619678208).

505122005130 is an abundant number, since it is smaller than the sum of its proper divisors (806117351286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505122005130 is a wasteful number, since it uses less digits than its factorization.

505122005130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98292.

The product of its (nonzero) digits is 1500, while the sum is 24.

Adding to 505122005130 its reverse (31500221505), we get a palindrome (536622226635).

The spelling of 505122005130 in words is "five hundred five billion, one hundred twenty-two million, five thousand, one hundred thirty".