211013113 has 4 divisors (see below), whose sum is σ = 213061888. Its totient is φ = 208964340.

The previous prime is 211013059. The next prime is 211013119. The reversal of 211013113 is 311310112.

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 not a de Polignac number, because 211013113 - 2⁹ = 211012601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211013093 and 211013102.

It is not an unprimeable number, because it can be changed into a prime (211013119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1024233 + ... + 1024438.

It is an arithmetic number, because the mean of its divisors is an integer number (53265472).

Almost surely, 2^211013113 is an apocalyptic number.

It is an amenable number.

211013113 is a deficient number, since it is larger than the sum of its proper divisors (2048775).

211013113 is a wasteful number, since it uses less digits than its factorization.

211013113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048774.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 211013113 is about 14526.2904073958. The cubic root of 211013113 is about 595.3465137869.

Adding to 211013113 its reverse (311310112), we get a palindrome (522323225).

The spelling of 211013113 in words is "two hundred eleven million, thirteen thousand, one hundred thirteen".