211130330 has 16 divisors (see below), whose sum is σ = 383399784. Its totient is φ = 83704320.

The previous prime is 211130287. The next prime is 211130371. The reversal of 211130330 is 33031112.

It can be written as a sum of positive squares in 4 ways, for example, as 35010889 + 176119441 = 5917^2 + 13271^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92291 + ... + 94550.

Almost surely, 2^211130330 is an apocalyptic number.

211130330 is a deficient number, since it is larger than the sum of its proper divisors (172269454).

211130330 is a wasteful number, since it uses less digits than its factorization.

211130330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186961.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 211130330 is about 14530.3244974089. The cubic root of 211130330 is about 595.4567309729.

Adding to 211130330 its reverse (33031112), we get a palindrome (244161442).

The spelling of 211130330 in words is "two hundred eleven million, one hundred thirty thousand, three hundred thirty".