213313232 has 40 divisors (see below), whose sum is σ = 465422592. Its totient is φ = 93830400.

The previous prime is 213313223. The next prime is 213313253. The reversal of 213313232 is 232313312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14093 + ... + 25004.

Almost surely, 2^213313232 is an apocalyptic number.

213313232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213313232 is an abundant number, since it is smaller than the sum of its proper divisors (252109360).

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

213313232 is a wasteful number, since it uses less digits than its factorization.

213313232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39147 (or 39141 counting only the distinct ones).

The product of its digits is 648, while the sum is 20.

The square root of 213313232 is about 14605.2467284877. The cubic root of 213313232 is about 597.5018651576.

Adding to 213313232 its reverse (232313312), we get a palindrome (445626544).

The spelling of 213313232 in words is "two hundred thirteen million, three hundred thirteen thousand, two hundred thirty-two".