32131210220 has 48 divisors (see below), whose sum is σ = 71300597760. Its totient is φ = 12138050496.

The previous prime is 32131210217. The next prime is 32131210229. The reversal of 32131210220 is 2201213123.

It is not an unprimeable number, because it can be changed into a prime (32131210229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405752 + ... + 478431.

It is an arithmetic number, because the mean of its divisors is an integer number (1485429120).

Almost surely, 2^32131210220 is an apocalyptic number.

It is an amenable number.

32131210220 is an abundant number, since it is smaller than the sum of its proper divisors (39169387540).

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

32131210220 is a wasteful number, since it uses less digits than its factorization.

32131210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884294 (or 884292 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 32131210220 its reverse (2201213123), we get a palindrome (34332423343).

The spelling of 32131210220 in words is "thirty-two billion, one hundred thirty-one million, two hundred ten thousand, two hundred twenty".