512312013 has 8 divisors (see below), whose sum is σ = 758980800. Its totient is φ = 341541324.

The previous prime is 512312011. The next prime is 512312023. The reversal of 512312013 is 310213215.

It is not a de Polignac number, because 512312013 - 2¹ = 512312011 is a prime.

It is a super-2 number, since 2×512312013² = 524927197328224338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512312011) 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, 9487233 + ... + 9487286.

It is an arithmetic number, because the mean of its divisors is an integer number (94872600).

Almost surely, 2^512312013 is an apocalyptic number.

It is an amenable number.

512312013 is a deficient number, since it is larger than the sum of its proper divisors (246668787).

512312013 is a wasteful number, since it uses less digits than its factorization.

512312013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18974528 (or 18974522 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 512312013 is about 22634.3105262785. The cubic root of 512312013 is about 800.1624737714.

Adding to 512312013 its reverse (310213215), we get a palindrome (822525228).

The spelling of 512312013 in words is "five hundred twelve million, three hundred twelve thousand, thirteen".