211331134 has 8 divisors (see below), whose sum is σ = 362281968. Its totient is φ = 90570480.

The previous prime is 211331117. The next prime is 211331143. The reversal of 211331134 is 431133112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7547527 + ... + 7547554.

It is an arithmetic number, because the mean of its divisors is an integer number (45285246).

Almost surely, 2^211331134 is an apocalyptic number.

211331134 is a deficient number, since it is larger than the sum of its proper divisors (150950834).

211331134 is a wasteful number, since it uses less digits than its factorization.

211331134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15095090.

The product of its digits is 216, while the sum is 19.

The square root of 211331134 is about 14537.2326802593. The cubic root of 211331134 is about 595.6454488549.

Adding to 211331134 its reverse (431133112), we get a palindrome (642464246).

The spelling of 211331134 in words is "two hundred eleven million, three hundred thirty-one thousand, one hundred thirty-four".