506121113 has 4 divisors (see below), whose sum is σ = 519800100. Its totient is φ = 492442128.

The previous prime is 506121103. The next prime is 506121167. The reversal of 506121113 is 311121605.

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

It can be written as a sum of positive squares in 2 ways, for example, as 234794329 + 271326784 = 15323^2 + 16472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506121113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506121103) 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, 6839438 + ... + 6839511.

It is an arithmetic number, because the mean of its divisors is an integer number (129950025).

Almost surely, 2^506121113 is an apocalyptic number.

It is an amenable number.

506121113 is a deficient number, since it is larger than the sum of its proper divisors (13678987).

506121113 is a wasteful number, since it uses less digits than its factorization.

506121113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13678986.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 506121113 is about 22497.1356621237. The cubic root of 506121113 is about 796.9262851586.

Adding to 506121113 its reverse (311121605), we get a palindrome (817242718).

The spelling of 506121113 in words is "five hundred six million, one hundred twenty-one thousand, one hundred thirteen".