1211300087 has 2 divisors, whose sum is σ = 1211300088. Its totient is φ = 1211300086.

The previous prime is 1211300081. The next prime is 1211300113. The reversal of 1211300087 is 7800031121.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (7800031121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211300087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211300081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605650043 + 605650044.

It is an arithmetic number, because the mean of its divisors is an integer number (605650044).

Almost surely, 2^1211300087 is an apocalyptic number.

1211300087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211300087 is an equidigital number, since it uses as much as digits as its factorization.

1211300087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 1211300087 is about 34803.7366815691. The cubic root of 1211300087 is about 1065.9837463363.

The spelling of 1211300087 in words is "one billion, two hundred eleven million, three hundred thousand, eighty-seven".