213335312 has 20 divisors (see below), whose sum is σ = 437651676. Its totient is φ = 100392960.

The previous prime is 213335293. The next prime is 213335323. The reversal of 213335312 is 213533312.

213335312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 83466496 + 129868816 = 9136^2 + 11396^2 .

It is a super-2 number, since 2×213335312² = 91023910692274688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391889 + ... + 392432.

Almost surely, 2^213335312 is an apocalyptic number.

It is an amenable number.

213335312 is an abundant number, since it is smaller than the sum of its proper divisors (224316364).

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

213335312 is a wasteful number, since it uses less digits than its factorization.

213335312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784346 (or 784340 counting only the distinct ones).

The product of its digits is 1620, while the sum is 23.

The square root of 213335312 is about 14606.0026016703. The cubic root of 213335312 is about 597.5224802032.

Adding to 213335312 its reverse (213533312), we get a palindrome (426868624).

It can be divided in two parts, 21 and 3335312, that added together give a palindrome (3335333).

The spelling of 213335312 in words is "two hundred thirteen million, three hundred thirty-five thousand, three hundred twelve".