505323104111 has 4 divisors (see below), whose sum is σ = 577512118992. Its totient is φ = 433134089232.

The previous prime is 505323104087. The next prime is 505323104137. The reversal of 505323104111 is 111401323505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 505323104111 - 2¹⁴ = 505323087727 is a prime.

It is a super-4 number, since 4×505323104111⁴ (a number of 48 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505323104191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36094507430 + ... + 36094507443.

It is an arithmetic number, because the mean of its divisors is an integer number (144378029748).

Almost surely, 2^505323104111 is an apocalyptic number.

505323104111 is a deficient number, since it is larger than the sum of its proper divisors (72189014881).

505323104111 is an equidigital number, since it uses as much as digits as its factorization.

505323104111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72189014880.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 505323104111 its reverse (111401323505), we get a palindrome (616724427616).

The spelling of 505323104111 in words is "five hundred five billion, three hundred twenty-three million, one hundred four thousand, one hundred eleven".