211321234423 has 8 divisors (see below), whose sum is σ = 227597428800. Its totient is φ = 195047999328.

The previous prime is 211321234417. The next prime is 211321234441. The reversal of 211321234423 is 324432123112.

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

It is not a de Polignac number, because 211321234423 - 2³⁷ = 73882280951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211321234391 and 211321234400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211321234483) 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, 590383 + ... + 878176.

It is an arithmetic number, because the mean of its divisors is an integer number (28449678600).

Almost surely, 2^211321234423 is an apocalyptic number.

211321234423 is a deficient number, since it is larger than the sum of its proper divisors (16276194377).

211321234423 is a wasteful number, since it uses less digits than its factorization.

211321234423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479641.

The product of its digits is 6912, while the sum is 28.

Adding to 211321234423 its reverse (324432123112), we get a palindrome (535753357535).

The spelling of 211321234423 in words is "two hundred eleven billion, three hundred twenty-one million, two hundred thirty-four thousand, four hundred twenty-three".