11201987 has 2 divisors, whose sum is σ = 11201988. Its totient is φ = 11201986.

The previous prime is 11201951. The next prime is 11202017. The reversal of 11201987 is 78910211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11201987 - 2¹⁰ = 11200963 is a prime.

It is not a weakly prime, because it can be changed into another prime (11201947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600993 + 5600994.

It is an arithmetic number, because the mean of its divisors is an integer number (5600994).

Almost surely, 2^11201987 is an apocalyptic number.

11201987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11201987 is an equidigital number, since it uses as much as digits as its factorization.

11201987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 11201987 is about 3346.9369578766. The cubic root of 11201987 is about 223.7510187942.

The spelling of 11201987 in words is "eleven million, two hundred one thousand, nine hundred eighty-seven".