2101311321200 has 180 divisors, whose sum is σ = 6247556992368. Its totient is φ = 665030246400.

The previous prime is 2101311321191. The next prime is 2101311321401. The reversal of 2101311321200 is 21231131012.

It is a congruent number.

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 35 ways as a sum of consecutive naturals, for example, 1747121 + ... + 2693520.

Almost surely, 2^{2101311321200} is an apocalyptic number.

2101311321200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101311321200 is an abundant number, since it is smaller than the sum of its proper divisors (4146245671168).

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

2101311321200 is a wasteful number, since it uses less digits than its factorization.

2101311321200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4440692 (or 4440668 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 2101311321200 its reverse (21231131012), we get a palindrome (2122542452212).

The spelling of 2101311321200 in words is "two trillion, one hundred one billion, three hundred eleven million, three hundred twenty-one thousand, two hundred".