211341330 has 24 divisors (see below), whose sum is σ = 549487692. Its totient is φ = 56357664.

The previous prime is 211341307. The next prime is 211341341. The reversal of 211341330 is 33143112.

It can be written as a sum of positive squares in 2 ways, for example, as 210917529 + 423801 = 14523^2 + 651^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1174029 + ... + 1174208.

Almost surely, 2^211341330 is an apocalyptic number.

211341330 is an abundant number, since it is smaller than the sum of its proper divisors (338146362).

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

211341330 is a wasteful number, since it uses less digits than its factorization.

211341330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348250 (or 2348247 counting only the distinct ones).

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

The square root of 211341330 is about 14537.5833617558. The cubic root of 211341330 is about 595.6550279819.

Adding to 211341330 its reverse (33143112), we get a palindrome (244484442).

The spelling of 211341330 in words is "two hundred eleven million, three hundred forty-one thousand, three hundred thirty".