211031086 has 32 divisors (see below), whose sum is σ = 380422080. Its totient is φ = 85881600.

The previous prime is 211031083. The next prime is 211031087. The reversal of 211031086 is 680130112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211031083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20506 + ... + 29026.

It is an arithmetic number, because the mean of its divisors is an integer number (11888190).

Almost surely, 2^211031086 is an apocalyptic number.

211031086 is a deficient number, since it is larger than the sum of its proper divisors (169390994).

211031086 is a wasteful number, since it uses less digits than its factorization.

211031086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8620.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 211031086 is about 14526.9090311738. The cubic root of 211031086 is about 595.3634161474.

Adding to 211031086 its reverse (680130112), we get a palindrome (891161198).

The spelling of 211031086 in words is "two hundred eleven million, thirty-one thousand, eighty-six".