511303313 has 8 divisors (see below), whose sum is σ = 516167040. Its totient is φ = 506460240.

The previous prime is 511303307. The next prime is 511303343. The reversal of 511303313 is 313303115.

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 511303313 - 2⁶ = 511303249 is a prime.

It is a super-2 number, since 2×511303313² = 522862155769551938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (511303343) 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, 47048 + ... + 56886.

It is an arithmetic number, because the mean of its divisors is an integer number (64520880).

Almost surely, 2^511303313 is an apocalyptic number.

It is an amenable number.

511303313 is a deficient number, since it is larger than the sum of its proper divisors (4863727).

511303313 is a wasteful number, since it uses less digits than its factorization.

511303313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10327.

The product of its (nonzero) digits is 405, while the sum is 20.

The square root of 511303313 is about 22612.0170042391. The cubic root of 511303313 is about 799.6369774807.

Adding to 511303313 its reverse (313303115), we get a palindrome (824606428).

The spelling of 511303313 in words is "five hundred eleven million, three hundred three thousand, three hundred thirteen".