20120203133112 has 32 divisors (see below), whose sum is σ = 50301636886800. Its totient is φ = 6706583837184.

The previous prime is 20120203133099. The next prime is 20120203133221. The reversal of 20120203133112 is 21133130202102.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8314687 + ... + 10458222.

Almost surely, 2^{20120203133112} is an apocalyptic number.

It is an amenable number.

20120203133112 is an abundant number, since it is smaller than the sum of its proper divisors (30181433753688).

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

20120203133112 is a wasteful number, since it uses less digits than its factorization.

20120203133112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18817575 (or 18817571 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20120203133112 its reverse (21133130202102), we get a palindrome (41253333335214).

The spelling of 20120203133112 in words is "twenty trillion, one hundred twenty billion, two hundred three million, one hundred thirty-three thousand, one hundred twelve".