32131120212 has 18 divisors (see below), whose sum is σ = 81220331738. Its totient is φ = 10710373392.

The previous prime is 32131120199. The next prime is 32131120291. The reversal of 32131120212 is 21202113123.

32131120212 is a `hidden beast` number, since 321 + 311 + 20 + 2 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26421202116 + 5709918096 = 162546^2 + 75564^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 446265523 + ... + 446265594.

Almost surely, 2^32131120212 is an apocalyptic number.

It is an amenable number.

32131120212 is an abundant number, since it is smaller than the sum of its proper divisors (49089211526).

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

32131120212 is a wasteful number, since it uses less digits than its factorization.

32131120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892531127 (or 892531122 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 32131120212 its reverse (21202113123), we get a palindrome (53333233335).

The spelling of 32131120212 in words is "thirty-two billion, one hundred thirty-one million, one hundred twenty thousand, two hundred twelve".