11201111201987 has 24 divisors (see below), whose sum is σ = 13640668183296. Its totient is φ = 9153605715408.

The previous prime is 11201111201947. The next prime is 11201111201989. The reversal of 11201111201987 is 78910211110211.

It is not a de Polignac number, because 11201111201987 - 2¹⁴ = 11201111185603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11201111201989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15841103 + ... + 16533080.

It is an arithmetic number, because the mean of its divisors is an integer number (568361174304).

Almost surely, 2^{11201111201987} is an apocalyptic number.

11201111201987 is a deficient number, since it is larger than the sum of its proper divisors (2439556981309).

11201111201987 is a wasteful number, since it uses less digits than its factorization.

11201111201987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32374527 (or 32374520 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 35.

The spelling of 11201111201987 in words is "eleven trillion, two hundred one billion, one hundred eleven million, two hundred one thousand, nine hundred eighty-seven".