2021203130112 has 216 divisors, whose sum is σ = 5868011783088. Its totient is φ = 669081600000.

The previous prime is 2021203130069. The next prime is 2021203130113. The reversal of 2021203130112 is 2110313021202.

2021203130112 is a `hidden beast` number, since 202 + 120 + 31 + 301 + 12 = 666.

It is a super-2 number, since 2×2021203130112² (a number of 25 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 (2021203130113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204136362 + ... + 204146262.

It is an arithmetic number, because the mean of its divisors is an integer number (27166721218).

Almost surely, 2^{2021203130112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021203130112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2934005891544).

2021203130112 is an abundant number, since it is smaller than the sum of its proper divisors (3846808652976).

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

2021203130112 is a wasteful number, since it uses less digits than its factorization.

2021203130112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10527 (or 10510 counting only the distinct ones).

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

Adding to 2021203130112 its reverse (2110313021202), we get a palindrome (4131516151314).

The spelling of 2021203130112 in words is "two trillion, twenty-one billion, two hundred three million, one hundred thirty thousand, one hundred twelve".