511320113 has 4 divisors (see below), whose sum is σ = 514145268. Its totient is φ = 508494960.

The previous prime is 511320053. The next prime is 511320127. The reversal of 511320113 is 311023115.

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 14386849 + 496933264 = 3793^2 + 22292^2 .

It is a cyclic number.

It is not a de Polignac number, because 511320113 - 2⁸ = 511319857 is a prime.

It is a super-2 number, since 2×511320113² = 522896515916665538, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 511320091 and 511320100.

It is not an unprimeable number, because it can be changed into a prime (511320133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1412306 + ... + 1412667.

It is an arithmetic number, because the mean of its divisors is an integer number (128536317).

Almost surely, 2^511320113 is an apocalyptic number.

It is an amenable number.

511320113 is a deficient number, since it is larger than the sum of its proper divisors (2825155).

511320113 is a wasteful number, since it uses less digits than its factorization.

511320113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825154.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 511320113 is about 22612.3884850761. The cubic root of 511320113 is about 799.6457353313.

Adding to 511320113 its reverse (311023115), we get a palindrome (822343228).

The spelling of 511320113 in words is "five hundred eleven million, three hundred twenty thousand, one hundred thirteen".