511313321 has 8 divisors (see below), whose sum is σ = 519180480. Its totient is φ = 503502192.

The previous prime is 511313311. The next prime is 511313339. The reversal of 511313321 is 123313115.

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 511313321 - 2¹⁰ = 511312297 is a prime.

It is a super-2 number, since 2×511313321² = 522882624464098082, 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 = 511313293 and 511313302.

It is not an unprimeable number, because it can be changed into a prime (511313311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4571 + ... + 32303.

It is an arithmetic number, because the mean of its divisors is an integer number (64897560).

Almost surely, 2^511313321 is an apocalyptic number.

It is an amenable number.

511313321 is a deficient number, since it is larger than the sum of its proper divisors (7867159).

511313321 is a wasteful number, since it uses less digits than its factorization.

511313321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28015.

The product of its digits is 270, while the sum is 20.

The square root of 511313321 is about 22612.2383014155. The cubic root of 511313321 is about 799.6421946805.

Adding to 511313321 its reverse (123313115), we get a palindrome (634626436).

The spelling of 511313321 in words is "five hundred eleven million, three hundred thirteen thousand, three hundred twenty-one".