211033134 has 64 divisors (see below), whose sum is σ = 506882880. Its totient is φ = 64696320.

The previous prime is 211033129. The next prime is 211033139. The reversal of 211033134 is 431330112.

It is an interprime number because it is at equal distance from previous prime (211033129) and next prime (211033139).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211033139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 365454 + ... + 366030.

It is an arithmetic number, because the mean of its divisors is an integer number (7920045).

Almost surely, 2^211033134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211033134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253441440).

211033134 is an abundant number, since it is smaller than the sum of its proper divisors (295849746).

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

211033134 is a wasteful number, since it uses less digits than its factorization.

211033134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122 (or 1116 counting only the distinct ones).

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

The square root of 211033134 is about 14526.9795208777. The cubic root of 211033134 is about 595.3653420885.

Adding to 211033134 its reverse (431330112), we get a palindrome (642363246).

The spelling of 211033134 in words is "two hundred eleven million, thirty-three thousand, one hundred thirty-four".