211434030423 has 96 divisors (see below), whose sum is σ = 386275169280. Its totient is φ = 108256849920.

The previous prime is 211434030373. The next prime is 211434030497. The reversal of 211434030423 is 324030434112.

211434030423 is a `hidden beast` number, since 2 + 1 + 14 + 340 + 304 + 2 + 3 = 666.

It is not a de Polignac number, because 211434030423 - 2¹³ = 211434022231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211434034423) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14571390 + ... + 14585892.

It is an arithmetic number, because the mean of its divisors is an integer number (4023699680).

Almost surely, 2^211434030423 is an apocalyptic number.

211434030423 is a deficient number, since it is larger than the sum of its proper divisors (174841138857).

211434030423 is a wasteful number, since it uses less digits than its factorization.

211434030423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14829 (or 14826 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 211434030423 its reverse (324030434112), we get a palindrome (535464464535).

The spelling of 211434030423 in words is "two hundred eleven billion, four hundred thirty-four million, thirty thousand, four hundred twenty-three".