32112312012 has 72 divisors (see below), whose sum is σ = 88572137472. Its totient is φ = 9728805600.

The previous prime is 32112311999. The next prime is 32112312019. The reversal of 32112312012 is 21021321123.

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

It is not an unprimeable number, because it can be changed into a prime (32112312019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2959437 + ... + 2970267.

It is an arithmetic number, because the mean of its divisors is an integer number (1230168576).

Almost surely, 2^32112312012 is an apocalyptic number.

It is an amenable number.

32112312012 is an abundant number, since it is smaller than the sum of its proper divisors (56459825460).

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

32112312012 is a wasteful number, since it uses less digits than its factorization.

32112312012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18339 (or 18334 counting only the distinct ones).

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

Adding to 32112312012 its reverse (21021321123), we get a palindrome (53133633135).

The spelling of 32112312012 in words is "thirty-two billion, one hundred twelve million, three hundred twelve thousand, twelve".