321112302012 has 36 divisors (see below), whose sum is σ = 811986911736. Its totient is φ = 106999670880.

The previous prime is 321112301989. The next prime is 321112302013. The reversal of 321112302012 is 210203211123.

321112302012 is a `hidden beast` number, since 321 + 112 + 30 + 201 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×321112302012² (a number of 24 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321112302013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1469914 + ... + 1674177.

Almost surely, 2^321112302012 is an apocalyptic number.

It is an amenable number.

321112302012 is an abundant number, since it is smaller than the sum of its proper divisors (490874609724).

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

321112302012 is a wasteful number, since it uses less digits than its factorization.

321112302012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3146938 (or 3146933 counting only the distinct ones).

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

Adding to 321112302012 its reverse (210203211123), we get a palindrome (531315513135).

The spelling of 321112302012 in words is "three hundred twenty-one billion, one hundred twelve million, three hundred two thousand, twelve".