3231223320 has 384 divisors, whose sum is σ = 11487873600. Its totient is φ = 720175104.

The previous prime is 3231223301. The next prime is 3231223321. The reversal of 3231223320 is 233221323.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3231223321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 36305836 + ... + 36305924.

Almost surely, 2^3231223320 is an apocalyptic number.

3231223320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3231223320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5743936800).

3231223320 is an abundant number, since it is smaller than the sum of its proper divisors (8256650280).

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

3231223320 is a wasteful number, since it uses less digits than its factorization.

3231223320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 3231223320 is about 56843.8503270143. The cubic root of 3231223320 is about 1478.3899156995.

Adding to 3231223320 its reverse (233221323), we get a palindrome (3464444643).

The spelling of 3231223320 in words is "three billion, two hundred thirty-one million, two hundred twenty-three thousand, three hundred twenty".