3231320320 has 36 divisors (see below), whose sum is σ = 7740025020. Its totient is φ = 1292527616.

The previous prime is 3231320311. The next prime is 3231320327. The reversal of 3231320320 is 230231323.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1539149824 + 1692170496 = 39232^2 + 41136^2 .

It is not an unprimeable number, because it can be changed into a prime (3231320327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1260955 + ... + 1263514.

It is an arithmetic number, because the mean of its divisors is an integer number (215000695).

Almost surely, 2^3231320320 is an apocalyptic number.

It is an amenable number.

3231320320 is an abundant number, since it is smaller than the sum of its proper divisors (4508704700).

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

3231320320 is an equidigital number, since it uses as much as digits as its factorization.

3231320320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524490 (or 2524476 counting only the distinct ones).

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

The square root of 3231320320 is about 56844.7035351580. The cubic root of 3231320320 is about 1478.4047091046.

Adding to 3231320320 its reverse (230231323), we get a palindrome (3461551643).

The spelling of 3231320320 in words is "three billion, two hundred thirty-one million, three hundred twenty thousand, three hundred twenty".