232321212 has 18 divisors (see below), whose sum is σ = 587256488. Its totient is φ = 77440392.

The previous prime is 232321171. The next prime is 232321213. The reversal of 232321212 is 212123232.

232321212 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232321213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3226648 + ... + 3226719.

Almost surely, 2^232321212 is an apocalyptic number.

It is an amenable number.

232321212 is an abundant number, since it is smaller than the sum of its proper divisors (354935276).

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

232321212 is a wasteful number, since it uses less digits than its factorization.

232321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6453377 (or 6453372 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 232321212 is about 15242.0868649933. The cubic root of 232321212 is about 614.7468162672.

Adding to 232321212 its reverse (212123232), we get a palindrome (444444444).

The spelling of 232321212 in words is "two hundred thirty-two million, three hundred twenty-one thousand, two hundred twelve".