211130334 has 32 divisors (see below), whose sum is σ = 469981440. Its totient is φ = 70256376.

The previous prime is 211130287. The next prime is 211130371. The reversal of 211130334 is 433031112.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 31917 + ... + 37959.

It is an arithmetic number, because the mean of its divisors is an integer number (14686920).

Almost surely, 2^211130334 is an apocalyptic number.

211130334 is an abundant number, since it is smaller than the sum of its proper divisors (258851106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211130334 is a wasteful number, since it uses less digits than its factorization.

211130334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6701 (or 6695 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 211130334 is about 14530.3246350520. The cubic root of 211130334 is about 595.4567347333.

Adding to 211130334 its reverse (433031112), we get a palindrome (644161446).

The spelling of 211130334 in words is "two hundred eleven million, one hundred thirty thousand, three hundred thirty-four".