213312108 has 12 divisors (see below), whose sum is σ = 497728280. Its totient is φ = 71104032.

The previous prime is 213312103. The next prime is 213312119. The reversal of 213312108 is 801213312.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (213312103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8887993 + ... + 8888016.

Almost surely, 2^213312108 is an apocalyptic number.

It is an amenable number.

213312108 is an abundant number, since it is smaller than the sum of its proper divisors (284416172).

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

213312108 is a wasteful number, since it uses less digits than its factorization.

213312108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17776016 (or 17776014 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 213312108 is about 14605.2082491144. The cubic root of 213312108 is about 597.5008156942.

It can be divided in two parts, 2133 and 12108, that added together give a palindrome (14241).

The spelling of 213312108 in words is "two hundred thirteen million, three hundred twelve thousand, one hundred eight".