2111144031200 has 36 divisors (see below), whose sum is σ = 5153830368120. Its totient is φ = 844457612160.

The previous prime is 2111144031181. The next prime is 2111144031259. The reversal of 2111144031200 is 21304411112.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1319464220 + ... + 1319465819.

It is an arithmetic number, because the mean of its divisors is an integer number (143161954670).

Almost surely, 2^{2111144031200} is an apocalyptic number.

2111144031200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111144031200 is an abundant number, since it is smaller than the sum of its proper divisors (3042686336920).

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

2111144031200 is a wasteful number, since it uses less digits than its factorization.

2111144031200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638930059 (or 2638930046 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2111144031200 its reverse (21304411112), we get a palindrome (2132448442312).

The spelling of 2111144031200 in words is "two trillion, one hundred eleven billion, one hundred forty-four million, thirty-one thousand, two hundred".