212130513 has 24 divisors (see below), whose sum is σ = 352954368. Its totient is φ = 120258432.

The previous prime is 212130511. The next prime is 212130517. The reversal of 212130513 is 315031212.

212130513 is a `hidden beast` number, since 2 + 121 + 30 + 513 = 666.

212130513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212130513 - 2¹ = 212130511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212130511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5256 + ... + 21257.

It is an arithmetic number, because the mean of its divisors is an integer number (14706432).

Almost surely, 2^212130513 is an apocalyptic number.

It is an amenable number.

212130513 is a deficient number, since it is larger than the sum of its proper divisors (140823855).

212130513 is a wasteful number, since it uses less digits than its factorization.

212130513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26653 (or 26650 counting only the distinct ones).

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

The square root of 212130513 is about 14564.7009238089. The cubic root of 212130513 is about 596.3955313709.

Adding to 212130513 its reverse (315031212), we get a palindrome (527161725).

The spelling of 212130513 in words is "two hundred twelve million, one hundred thirty thousand, five hundred thirteen".