200112011021987 has 2 divisors, whose sum is σ = 200112011021988. Its totient is φ = 200112011021986.

The previous prime is 200112011021947. The next prime is 200112011022023. The reversal of 200112011021987 is 789120110211002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200112011021987 is a prime.

It is not a weakly prime, because it can be changed into another prime (200112011021927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100056005510993 + 100056005510994.

It is an arithmetic number, because the mean of its divisors is an integer number (100056005510994).

Almost surely, 2^{200112011021987} is an apocalyptic number.

200112011021987 is a deficient number, since it is larger than the sum of its proper divisors (1).

200112011021987 is an equidigital number, since it uses as much as digits as its factorization.

200112011021987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 35.

Adding to 200112011021987 its reverse (789120110211002), we get a palindrome (989232121232989).

The spelling of 200112011021987 in words is "two hundred trillion, one hundred twelve billion, eleven million, twenty-one thousand, nine hundred eighty-seven".