213130244421 has 12 divisors (see below), whose sum is σ = 307915957440. Its totient is φ = 142058601960.

The previous prime is 213130244381. The next prime is 213130244473. The reversal of 213130244421 is 124442031312.

213130244421 is a `hidden beast` number, since 213 + 1 + 3 + 0 + 2 + 4 + 442 + 1 = 666.

It is not a de Polignac number, because 213130244421 - 2¹⁵ = 213130211653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213130248421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2304435 + ... + 2395136.

It is an arithmetic number, because the mean of its divisors is an integer number (25659663120).

Almost surely, 2^213130244421 is an apocalyptic number.

It is an amenable number.

213130244421 is a deficient number, since it is larger than the sum of its proper divisors (94785713019).

213130244421 is a wasteful number, since it uses less digits than its factorization.

213130244421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4704616 (or 4704613 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 213130244421 its reverse (124442031312), we get a palindrome (337572275733).

The spelling of 213130244421 in words is "two hundred thirteen billion, one hundred thirty million, two hundred forty-four thousand, four hundred twenty-one".