2106311 has 2 divisors, whose sum is σ = 2106312. Its totient is φ = 2106310.

The previous prime is 2106301. The next prime is 2106329. The reversal of 2106311 is 1136012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2106311 - 2¹⁰ = 2105287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2106301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053155 + 1053156.

It is an arithmetic number, because the mean of its divisors is an integer number (1053156).

2^2106311 is an apocalyptic number.

2106311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2106311 is an equidigital number, since it uses as much as digits as its factorization.

2106311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2106311 is about 1451.3135429672. The cubic root of 2106311 is about 128.1860697171.

Subtracting from 2106311 its reverse (1136012), we obtain a cube (970299 = 99³).

The spelling of 2106311 in words is "two million, one hundred six thousand, three hundred eleven".