211423322111 has 8 divisors (see below), whose sum is σ = 222555175920. Its totient is φ = 200291899392.

The previous prime is 211423322087. The next prime is 211423322141. The reversal of 211423322111 is 111223324112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211423322111 - 2¹⁴ = 211423305727 is a prime.

It is a super-2 number, since 2×211423322111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211423322141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1564031 + ... + 1693823.

It is an arithmetic number, because the mean of its divisors is an integer number (27819396990).

Almost surely, 2^211423322111 is an apocalyptic number.

211423322111 is a deficient number, since it is larger than the sum of its proper divisors (11131853809).

211423322111 is a wasteful number, since it uses less digits than its factorization.

211423322111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215545.

The product of its digits is 576, while the sum is 23.

Adding to 211423322111 its reverse (111223324112), we get a palindrome (322646646223).

The spelling of 211423322111 in words is "two hundred eleven billion, four hundred twenty-three million, three hundred twenty-two thousand, one hundred eleven".