201211000987 has 2 divisors, whose sum is σ = 201211000988. Its totient is φ = 201211000986.

The previous prime is 201211000973. The next prime is 201211001021. The reversal of 201211000987 is 789000112102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201211000987 is a prime.

It is not a weakly prime, because it can be changed into another prime (201211000967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100605500493 + 100605500494.

It is an arithmetic number, because the mean of its divisors is an integer number (100605500494).

Almost surely, 2^201211000987 is an apocalyptic number.

201211000987 is a deficient number, since it is larger than the sum of its proper divisors (1).

201211000987 is an equidigital number, since it uses as much as digits as its factorization.

201211000987 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 31.

The spelling of 201211000987 in words is "two hundred one billion, two hundred eleven million, nine hundred eighty-seven", and thus it is an aban number.