2100112001987 has 2 divisors, whose sum is σ = 2100112001988. Its totient is φ = 2100112001986.

The previous prime is 2100112001881. The next prime is 2100112002007. The reversal of 2100112001987 is 7891002110012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100112001987 - 2¹⁶ = 2100111936451 is a prime.

It is not a weakly prime, because it can be changed into another prime (2100112001387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050056000993 + 1050056000994.

It is an arithmetic number, because the mean of its divisors is an integer number (1050056000994).

Almost surely, 2^{2100112001987} is an apocalyptic number.

2100112001987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100112001987 is an equidigital number, since it uses as much as digits as its factorization.

2100112001987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 32.

Adding to 2100112001987 its reverse (7891002110012), we get a palindrome (9991114111999).

The spelling of 2100112001987 in words is "two trillion, one hundred billion, one hundred twelve million, one thousand, nine hundred eighty-seven".