12020331331112 has 16 divisors (see below), whose sum is σ = 24271822880340. Its totient is φ = 5547845229696.

The previous prime is 12020331331087. The next prime is 12020331331139. The reversal of 12020331331112 is 21113313302021.

It can be written as a sum of positive squares in 2 ways, for example, as 11929521919396 + 90809411716 = 3453914^2 + 301346^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 57790054373 + ... + 57790054580.

Almost surely, 2^{12020331331112} is an apocalyptic number.

It is an amenable number.

12020331331112 is an abundant number, since it is smaller than the sum of its proper divisors (12251491549228).

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

12020331331112 is a wasteful number, since it uses less digits than its factorization.

12020331331112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115580108972 (or 115580108968 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 12020331331112 its reverse (21113313302021), we get a palindrome (33133644633133).

The spelling of 12020331331112 in words is "twelve trillion, twenty billion, three hundred thirty-one million, three hundred thirty-one thousand, one hundred twelve".