213130326 has 32 divisors (see below), whose sum is σ = 454243680. Its totient is φ = 66433536.

The previous prime is 213130303. The next prime is 213130327. The reversal of 213130326 is 623031312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213130327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9360 + ... + 22668.

It is an arithmetic number, because the mean of its divisors is an integer number (14195115).

Almost surely, 2^213130326 is an apocalyptic number.

213130326 is an abundant number, since it is smaller than the sum of its proper divisors (241113354).

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

213130326 is a wasteful number, since it uses less digits than its factorization.

213130326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13488.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 213130326 is about 14598.9837317534. The cubic root of 213130326 is about 597.3310398005.

Adding to 213130326 its reverse (623031312), we get a palindrome (836161638).

The spelling of 213130326 in words is "two hundred thirteen million, one hundred thirty thousand, three hundred twenty-six".