211004343400111 has 4 divisors (see below), whose sum is σ = 211004417536432. Its totient is φ = 211004269263792.

The previous prime is 211004343400099. The next prime is 211004343400139. The reversal of 211004343400111 is 111004343400112.

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

It is a cyclic number.

It is not a de Polignac number, because 211004343400111 - 2²⁷ = 211004209182383 is a prime.

It is a super-3 number, since 3×211004343400111³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211004343400181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32621070 + ... + 38550523.

It is an arithmetic number, because the mean of its divisors is an integer number (52751104384108).

Almost surely, 2^{211004343400111} is an apocalyptic number.

211004343400111 is a deficient number, since it is larger than the sum of its proper divisors (74136321).

211004343400111 is an equidigital number, since it uses as much as digits as its factorization.

211004343400111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74136320.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 211004343400111 its reverse (111004343400112), we get a palindrome (322008686800223).

Subtracting from 211004343400111 its reverse (111004343400112), we obtain a palindrome (99999999999999).

The spelling of 211004343400111 in words is "two hundred eleven trillion, four billion, three hundred forty-three million, four hundred thousand, one hundred eleven".