513012012 has 12 divisors (see below), whose sum is σ = 1197028056. Its totient is φ = 171004000.

The previous prime is 513012007. The next prime is 513012029. The reversal of 513012012 is 210210315.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 513011982 and 513012000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21375489 + ... + 21375512.

It is an arithmetic number, because the mean of its divisors is an integer number (99752338).

Almost surely, 2^513012012 is an apocalyptic number.

It is an amenable number.

513012012 is an abundant number, since it is smaller than the sum of its proper divisors (684016044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513012012 is a wasteful number, since it uses less digits than its factorization.

513012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42751008 (or 42751006 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 513012012 is about 22649.7684756379. The cubic root of 513012012 is about 800.5267426849.

Adding to 513012012 its reverse (210210315), we get a palindrome (723222327).

The spelling of 513012012 in words is "five hundred thirteen million, twelve thousand, twelve".