211200013 has 4 divisors (see below), whose sum is σ = 214352320. Its totient is φ = 208047708.

The previous prime is 211200001. The next prime is 211200037. The reversal of 211200013 is 310002112.

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 211200013 - 2¹⁷ = 211068941 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 (211200083) 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, 1576053 + ... + 1576186.

It is an arithmetic number, because the mean of its divisors is an integer number (53588080).

Almost surely, 2^211200013 is an apocalyptic number.

It is an amenable number.

211200013 is a deficient number, since it is larger than the sum of its proper divisors (3152307).

211200013 is an equidigital number, since it uses as much as digits as its factorization.

211200013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152306.

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

The square root of 211200013 is about 14532.7221469345. The cubic root of 211200013 is about 595.5222334003.

Adding to 211200013 its reverse (310002112), we get a palindrome (521202125).

The spelling of 211200013 in words is "two hundred eleven million, two hundred thousand, thirteen".