32313221000 has 64 divisors (see below), whose sum is σ = 78220350000. Its totient is φ = 12479577600.

The previous prime is 32313220963. The next prime is 32313221009. The reversal of 32313221000 is 12231323.

It can be written as a sum of positive squares in 8 ways, for example, as 73582084 + 32239638916 = 8578^2 + 179554^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 32313221000.

It is not an unprimeable number, because it can be changed into a prime (32313221009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528125 + ... + 586124.

Almost surely, 2^32313221000 is an apocalyptic number.

It is an amenable number.

32313221000 is an abundant number, since it is smaller than the sum of its proper divisors (45907129000).

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

32313221000 is a wasteful number, since it uses less digits than its factorization.

32313221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114299 (or 1114285 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 32313221000 its reverse (12231323), we get a palindrome (32325452323).

The spelling of 32313221000 in words is "thirty-two billion, three hundred thirteen million, two hundred twenty-one thousand".