3231128660 has 12 divisors (see below), whose sum is σ = 6785370228. Its totient is φ = 1292451456.

The previous prime is 3231128633. The next prime is 3231128671. The reversal of 3231128660 is 668211323.

It can be written as a sum of positive squares in 2 ways, for example, as 366952336 + 2864176324 = 19156^2 + 53518^2 .

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 3 ways as a sum of consecutive naturals, for example, 80778197 + ... + 80778236.

It is an arithmetic number, because the mean of its divisors is an integer number (565447519).

Almost surely, 2^3231128660 is an apocalyptic number.

It is an amenable number.

3231128660 is an abundant number, since it is smaller than the sum of its proper divisors (3554241568).

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

3231128660 is a wasteful number, since it uses less digits than its factorization.

3231128660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161556442 (or 161556440 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 3231128660 is about 56843.0176890707. The cubic root of 3231128660 is about 1478.3754788808.

Adding to 3231128660 its reverse (668211323), we get a palindrome (3899339983).

The spelling of 3231128660 in words is "three billion, two hundred thirty-one million, one hundred twenty-eight thousand, six hundred sixty".