211434302223 has 6 divisors (see below), whose sum is σ = 305405103224. Its totient is φ = 140956201476.

The previous prime is 211434302197. The next prime is 211434302231. The reversal of 211434302223 is 322203434112.

211434302223 is a `hidden beast` number, since 2 + 1 + 1 + 4 + 3 + 430 + 2 + 223 = 666.

It is not a de Polignac number, because 211434302223 - 2²⁸ = 211165866767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211434302243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11746350115 + ... + 11746350132.

Almost surely, 2^211434302223 is an apocalyptic number.

211434302223 is a deficient number, since it is larger than the sum of its proper divisors (93970801001).

211434302223 is a wasteful number, since it uses less digits than its factorization.

211434302223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23492700253 (or 23492700250 counting only the distinct ones).

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

Adding to 211434302223 its reverse (322203434112), we get a palindrome (533637736335).

The spelling of 211434302223 in words is "two hundred eleven billion, four hundred thirty-four million, three hundred two thousand, two hundred twenty-three".