2011310111 has 2 divisors, whose sum is σ = 2011310112. Its totient is φ = 2011310110.

The previous prime is 2011310099. The next prime is 2011310129. The reversal of 2011310111 is 1110131102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2011310111 - 2¹⁴ = 2011293727 is a prime.

It is a super-2 number, since 2×2011310111² = 8090736725221664642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2011310092 and 2011310101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011310611) 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, 1005655055 + 1005655056.

It is an arithmetic number, because the mean of its divisors is an integer number (1005655056).

Almost surely, 2^2011310111 is an apocalyptic number.

2011310111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011310111 is an equidigital number, since it uses as much as digits as its factorization.

2011310111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 2011310111 is about 44847.6321671501. The cubic root of 2011310111 is about 1262.2915615238.

Adding to 2011310111 its reverse (1110131102), we get a palindrome (3121441213).

The spelling of 2011310111 in words is "two billion, eleven million, three hundred ten thousand, one hundred eleven".