211130321 has 4 divisors (see below), whose sum is σ = 212310000. Its totient is φ = 209950644.

The previous prime is 211130287. The next prime is 211130371. The reversal of 211130321 is 123031112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211130321 - 2²⁶ = 144021457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211130296 and 211130305.

It is not an unprimeable number, because it can be changed into a prime (211130371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589571 + ... + 589928.

It is an arithmetic number, because the mean of its divisors is an integer number (53077500).

Almost surely, 2^211130321 is an apocalyptic number.

It is an amenable number.

211130321 is a deficient number, since it is larger than the sum of its proper divisors (1179679).

211130321 is a wasteful number, since it uses less digits than its factorization.

211130321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179678.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 211130321 is about 14530.3241877117. The cubic root of 211130321 is about 595.4567225119.

Adding to 211130321 its reverse (123031112), we get a palindrome (334161433).

The spelling of 211130321 in words is "two hundred eleven million, one hundred thirty thousand, three hundred twenty-one".