3231303220 has 36 divisors (see below), whose sum is σ = 7208390700. Its totient is φ = 1216488448.

The previous prime is 3231303217. The next prime is 3231303287. The reversal of 3231303220 is 223031323.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 672157476 + 2559145744 = 25926^2 + 50588^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 273745 + ... + 285304.

It is an arithmetic number, because the mean of its divisors is an integer number (200233075).

Almost surely, 2^3231303220 is an apocalyptic number.

It is an amenable number.

3231303220 is an abundant number, since it is smaller than the sum of its proper divisors (3977087480).

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

3231303220 is a wasteful number, since it uses less digits than its factorization.

3231303220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559092 (or 559073 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 3231303220 is about 56844.5531251676. The cubic root of 3231303220 is about 1478.4021012166.

Adding to 3231303220 its reverse (223031323), we get a palindrome (3454334543).

The spelling of 3231303220 in words is "three billion, two hundred thirty-one million, three hundred three thousand, two hundred twenty".