2021131200312 has 192 divisors, whose sum is σ = 6561664312320. Its totient is φ = 549904184064.

The previous prime is 2021131200307. The next prime is 2021131200383. The reversal of 2021131200312 is 2130021311202.

2021131200312 is a `hidden beast` number, since 2 + 0 + 21 + 131 + 200 + 312 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 276558 + ... + 2029469.

It is an arithmetic number, because the mean of its divisors is an integer number (34175334960).

Almost surely, 2^{2021131200312} 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 2021131200312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3280832156160).

2021131200312 is an abundant number, since it is smaller than the sum of its proper divisors (4540533112008).

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

2021131200312 is a wasteful number, since it uses less digits than its factorization.

2021131200312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306130 (or 2306123 counting only the distinct ones).

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

Adding to 2021131200312 its reverse (2130021311202), we get a palindrome (4151152511514).

The spelling of 2021131200312 in words is "two trillion, twenty-one billion, one hundred thirty-one million, two hundred thousand, three hundred twelve".