211423340210 has 16 divisors (see below), whose sum is σ = 390847472856. Its totient is φ = 82283678208.

The previous prime is 211423340201. The next prime is 211423340239. The reversal of 211423340210 is 12043324112.

It can be written as a sum of positive squares in 4 ways, for example, as 183090707881 + 28332632329 = 427891^2 + 168323^2 .

It is a super-4 number, since 4×211423340210⁴ (a number of 46 digits) contains 4444 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 285706847 + ... + 285707586.

Almost surely, 2^211423340210 is an apocalyptic number.

211423340210 is a deficient number, since it is larger than the sum of its proper divisors (179424132646).

211423340210 is a wasteful number, since it uses less digits than its factorization.

211423340210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571414477.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 211423340210 its reverse (12043324112), we get a palindrome (223466664322).

The spelling of 211423340210 in words is "two hundred eleven billion, four hundred twenty-three million, three hundred forty thousand, two hundred ten".