211322113 has 4 divisors (see below), whose sum is σ = 213373888. Its totient is φ = 209270340.

The previous prime is 211322063. The next prime is 211322141. The reversal of 211322113 is 311223112.

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 211322113 - 2⁹ = 211321601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211322143) 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, 1025733 + ... + 1025938.

It is an arithmetic number, because the mean of its divisors is an integer number (53343472).

Almost surely, 2^211322113 is an apocalyptic number.

It is an amenable number.

211322113 is a deficient number, since it is larger than the sum of its proper divisors (2051775).

211322113 is a wasteful number, since it uses less digits than its factorization.

211322113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051774.

The product of its digits is 72, while the sum is 16.

The square root of 211322113 is about 14536.9224046908. The cubic root of 211322113 is about 595.6369733818.

Adding to 211322113 its reverse (311223112), we get a palindrome (522545225).

Subtracting 211322113 from its reverse (311223112), we obtain a palindrome (99900999).

The spelling of 211322113 in words is "two hundred eleven million, three hundred twenty-two thousand, one hundred thirteen".