212430611 has 4 divisors (see below), whose sum is σ = 212630400. Its totient is φ = 212230824.

The previous prime is 212430601. The next prime is 212430619. The reversal of 212430611 is 116034212.

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 212430611 - 2²² = 208236307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212430619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98291 + ... + 100428.

It is an arithmetic number, because the mean of its divisors is an integer number (53157600).

Almost surely, 2^212430611 is an apocalyptic number.

212430611 is a deficient number, since it is larger than the sum of its proper divisors (199789).

212430611 is a wasteful number, since it uses less digits than its factorization.

212430611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199788.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 212430611 is about 14574.9995197255. Note that the first 3 decimals coincide. The cubic root of 212430611 is about 596.6766362611.

Adding to 212430611 its reverse (116034212), we get a palindrome (328464823).

The spelling of 212430611 in words is "two hundred twelve million, four hundred thirty thousand, six hundred eleven".