211333333305 has 16 divisors (see below), whose sum is σ = 341416183680. Its totient is φ = 111616827648.

The previous prime is 211333333301. The next prime is 211333333357. The reversal of 211333333305 is 503333333112.

It is a happy number.

It is not a de Polignac number, because 211333333305 - 2² = 211333333301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211333333301) 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 15 ways as a sum of consecutive naturals, for example, 68391120 + ... + 68394209.

It is an arithmetic number, because the mean of its divisors is an integer number (21338511480).

Almost surely, 2^211333333305 is an apocalyptic number.

It is an amenable number.

211333333305 is a deficient number, since it is larger than the sum of its proper divisors (130082850375).

211333333305 is a wasteful number, since it uses less digits than its factorization.

211333333305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136785440.

The product of its (nonzero) digits is 21870, while the sum is 30.

Adding to 211333333305 its reverse (503333333112), we get a palindrome (714666666417).

The spelling of 211333333305 in words is "two hundred eleven billion, three hundred thirty-three million, three hundred thirty-three thousand, three hundred five".