321343212 has 24 divisors (see below), whose sum is σ = 782401536. Its totient is φ = 102457168.

The previous prime is 321343207. The next prime is 321343279. The reversal of 321343212 is 212343123.

It is a super-2 number, since 2×321343212² = 206522919796953888, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 581868 + ... + 582419.

It is an arithmetic number, because the mean of its divisors is an integer number (32600064).

Almost surely, 2^321343212 is an apocalyptic number.

It is an amenable number.

321343212 is an abundant number, since it is smaller than the sum of its proper divisors (461058324).

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

321343212 is a wasteful number, since it uses less digits than its factorization.

321343212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164317 (or 1164315 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 321343212 is about 17926.0484212221. The cubic root of 321343212 is about 684.9460678231.

Adding to 321343212 its reverse (212343123), we get a palindrome (533686335).

The spelling of 321343212 in words is "three hundred twenty-one million, three hundred forty-three thousand, two hundred twelve".