211030201 has 4 divisors (see below), whose sum is σ = 212427904. Its totient is φ = 209632500.

The previous prime is 211030189. The next prime is 211030219. The reversal of 211030201 is 102030112.

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 a de Polignac number, because none of the positive numbers 2^k-211030201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211030241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698625 + ... + 698926.

It is an arithmetic number, because the mean of its divisors is an integer number (53106976).

Almost surely, 2^211030201 is an apocalyptic number.

It is an amenable number.

211030201 is a deficient number, since it is larger than the sum of its proper divisors (1397703).

211030201 is a wasteful number, since it uses less digits than its factorization.

211030201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397702.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 211030201 is about 14526.8785704294. The cubic root of 211030201 is about 595.3625838887.

Adding to 211030201 its reverse (102030112), we get a palindrome (313060313).

The spelling of 211030201 in words is "two hundred eleven million, thirty thousand, two hundred one".