211304101 has 4 divisors (see below), whose sum is σ = 223733772. Its totient is φ = 198874432.

The previous prime is 211304089. The next prime is 211304113. The reversal of 211304101 is 101403112.

211304101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (211304089) and next prime (211304113).

It can be written as a sum of positive squares in 2 ways, for example, as 184987201 + 26316900 = 13601^2 + 5130^2 .

It is a de Polignac number, because none of the positive numbers 2^k-211304101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211304141) 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, 6214810 + ... + 6214843.

It is an arithmetic number, because the mean of its divisors is an integer number (55933443).

Almost surely, 2^211304101 is an apocalyptic number.

It is an amenable number.

211304101 is a deficient number, since it is larger than the sum of its proper divisors (12429671).

211304101 is a wasteful number, since it uses less digits than its factorization.

211304101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12429670.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 211304101 is about 14536.3028655845. The cubic root of 211304101 is about 595.6200498996.

Adding to 211304101 its reverse (101403112), we get a palindrome (312707213).

The spelling of 211304101 in words is "two hundred eleven million, three hundred four thousand, one hundred one".