2111312087 has 2 divisors, whose sum is σ = 2111312088. Its totient is φ = 2111312086.

The previous prime is 2111312057. The next prime is 2111312153. The reversal of 2111312087 is 7802131112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111312087 - 2⁸ = 2111311831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111312057) 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, 1055656043 + 1055656044.

It is an arithmetic number, because the mean of its divisors is an integer number (1055656044).

Almost surely, 2^2111312087 is an apocalyptic number.

2111312087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111312087 is an equidigital number, since it uses as much as digits as its factorization.

2111312087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 2111312087 is about 45949.0161700988. The cubic root of 2111312087 is about 1282.8744173410.

Adding to 2111312087 its reverse (7802131112), we get a palindrome (9913443199).

The spelling of 2111312087 in words is "two billion, one hundred eleven million, three hundred twelve thousand, eighty-seven".