211342033 has 16 divisors (see below), whose sum is σ = 252426240. Its totient is φ = 173161296.

The previous prime is 211341983. The next prime is 211342037. The reversal of 211342033 is 330243112.

It is a de Polignac number, because none of the positive numbers 2^k-211342033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211342033.

It is not an unprimeable number, because it can be changed into a prime (211342037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6678 + ... + 21616.

It is an arithmetic number, because the mean of its divisors is an integer number (15776640).

Almost surely, 2^211342033 is an apocalyptic number.

It is an amenable number.

211342033 is a deficient number, since it is larger than the sum of its proper divisors (41084207).

211342033 is a wasteful number, since it uses less digits than its factorization.

211342033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15036.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 211342033 is about 14537.6075404449. The cubic root of 211342033 is about 595.6556884380.

Adding to 211342033 its reverse (330243112), we get a palindrome (541585145).

The spelling of 211342033 in words is "two hundred eleven million, three hundred forty-two thousand, thirty-three".