211344423 has 16 divisors (see below), whose sum is σ = 283996800. Its totient is φ = 139799520.

The previous prime is 211344409. The next prime is 211344439. The reversal of 211344423 is 324443112.

211344423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211344423 - 2⁹ = 211343911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211344393 and 211344402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211344403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305508 + ... + 306198.

It is an arithmetic number, because the mean of its divisors is an integer number (17749800).

Almost surely, 2^211344423 is an apocalyptic number.

211344423 is a deficient number, since it is larger than the sum of its proper divisors (72652377).

211344423 is a wasteful number, since it uses less digits than its factorization.

211344423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342.

The product of its digits is 2304, while the sum is 24.

The square root of 211344423 is about 14537.6897408082. The cubic root of 211344423 is about 595.6579337900.

Adding to 211344423 its reverse (324443112), we get a palindrome (535787535).

The spelling of 211344423 in words is "two hundred eleven million, three hundred forty-four thousand, four hundred twenty-three".