2011312087 has 2 divisors, whose sum is σ = 2011312088. Its totient is φ = 2011312086.

The previous prime is 2011312067. The next prime is 2011312123. The reversal of 2011312087 is 7802131102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2011312087 - 2¹⁹ = 2010787799 is a prime.

It is a super-2 number, since 2×2011312087² = 8090752622624591138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011312067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005656043 + 1005656044.

It is an arithmetic number, because the mean of its divisors is an integer number (1005656044).

Almost surely, 2^2011312087 is an apocalyptic number.

2011312087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011312087 is an equidigital number, since it uses as much as digits as its factorization.

2011312087 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 25.

The square root of 2011312087 is about 44847.6541972933. The cubic root of 2011312087 is about 1262.2919749007.

Adding to 2011312087 its reverse (7802131102), we get a palindrome (9813443189).

The spelling of 2011312087 in words is "two billion, eleven million, three hundred twelve thousand, eighty-seven".