3213303320 has 64 divisors (see below), whose sum is σ = 7583785920. Its totient is φ = 1223000064.

The previous prime is 3213303293. The next prime is 3213303341. The reversal of 3213303320 is 233033123.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3213303292 and 3213303301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168512 + ... + 186608.

It is an arithmetic number, because the mean of its divisors is an integer number (118496655).

Almost surely, 2^3213303320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3213303320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3791892960).

3213303320 is an abundant number, since it is smaller than the sum of its proper divisors (4370482600).

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

3213303320 is a wasteful number, since it uses less digits than its factorization.

3213303320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18324 (or 18320 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

The square root of 3213303320 is about 56686.0063860562. The cubic root of 3213303320 is about 1475.6518532199.

Adding to 3213303320 its reverse (233033123), we get a palindrome (3446336443).

The spelling of 3213303320 in words is "three billion, two hundred thirteen million, three hundred three thousand, three hundred twenty".