213130212009 has 16 divisors (see below), whose sum is σ = 333854318784. Its totient is φ = 119233684800.

The previous prime is 213130212007. The next prime is 213130212017. The reversal of 213130212009 is 900212031312.

It is not a de Polignac number, because 213130212009 - 2¹ = 213130212007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213130212009.

It is not an unprimeable number, because it can be changed into a prime (213130212007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248403082 + ... + 248403939.

It is an arithmetic number, because the mean of its divisors is an integer number (20865894924).

Almost surely, 2^213130212009 is an apocalyptic number.

It is an amenable number.

213130212009 is a deficient number, since it is larger than the sum of its proper divisors (120724106775).

213130212009 is a wasteful number, since it uses less digits than its factorization.

213130212009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496807048.

The product of its (nonzero) digits is 648, while the sum is 24.

The spelling of 213130212009 in words is "two hundred thirteen billion, one hundred thirty million, two hundred twelve thousand, nine".