213021010213 has 16 divisors (see below), whose sum is σ = 234807264000. Its totient is φ = 191640168000.

The previous prime is 213021010171. The next prime is 213021010243. The reversal of 213021010213 is 312010120312.

It is a cyclic number.

It is not a de Polignac number, because 213021010213 - 2²⁵ = 212987455781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213021010243) 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, 2172931 + ... + 2268847.

It is an arithmetic number, because the mean of its divisors is an integer number (14675454000).

Almost surely, 2^213021010213 is an apocalyptic number.

It is an amenable number.

213021010213 is a deficient number, since it is larger than the sum of its proper divisors (21786253787).

213021010213 is a wasteful number, since it uses less digits than its factorization.

213021010213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98028.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 213021010213 its reverse (312010120312), we get a palindrome (525031130525).

The spelling of 213021010213 in words is "two hundred thirteen billion, twenty-one million, ten thousand, two hundred thirteen".