211314242 has 16 divisors (see below), whose sum is σ = 329729400. Its totient is φ = 101445120.

The previous prime is 211314241. The next prime is 211314253. The reversal of 211314242 is 242413112.

It can be written as a sum of positive squares in 4 ways, for example, as 164378041 + 46936201 = 12821^2 + 6851^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (211314241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434 + ... + 20562.

Almost surely, 2^211314242 is an apocalyptic number.

211314242 is a deficient number, since it is larger than the sum of its proper divisors (118415158).

211314242 is a wasteful number, since it uses less digits than its factorization.

211314242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20341.

The product of its digits is 384, while the sum is 20.

The square root of 211314242 is about 14536.6516777420. The cubic root of 211314242 is about 595.6295781676.

Adding to 211314242 its reverse (242413112), we get a palindrome (453727354).

The spelling of 211314242 in words is "two hundred eleven million, three hundred fourteen thousand, two hundred forty-two".