3223020321 has 32 divisors (see below), whose sum is σ = 4805406720. Its totient is φ = 2134983312.

The previous prime is 3223020319. The next prime is 3223020329. The reversal of 3223020321 is 1230203223.

It is a happy number.

3223020321 is a `hidden beast` number, since 322 + 3 + 0 + 20 + 321 = 666.

It is not a de Polignac number, because 3223020321 - 2¹ = 3223020319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3223020294 and 3223020303.

It is not an unprimeable number, because it can be changed into a prime (3223020329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4337476 + ... + 4338218.

It is an arithmetic number, because the mean of its divisors is an integer number (150168960).

Almost surely, 2^3223020321 is an apocalyptic number.

It is an amenable number.

3223020321 is a deficient number, since it is larger than the sum of its proper divisors (1582386399).

3223020321 is a wasteful number, since it uses less digits than its factorization.

3223020321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562 (or 1556 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 3223020321 is about 56771.6506805994. The cubic root of 3223020321 is about 1477.1378091309.

Adding to 3223020321 its reverse (1230203223), we get a palindrome (4453223544).

The spelling of 3223020321 in words is "three billion, two hundred twenty-three million, twenty thousand, three hundred twenty-one".