23531324211 has 24 divisors (see below), whose sum is σ = 34661783520. Its totient is φ = 15379929216.

The previous prime is 23531324209. The next prime is 23531324227. The reversal of 23531324211 is 11242313532.

23531324211 is a `hidden beast` number, since 235 + 3 + 1 + 3 + 2 + 421 + 1 = 666.

It is not a de Polignac number, because 23531324211 - 2¹ = 23531324209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23531324111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2485 + ... + 216953.

It is an arithmetic number, because the mean of its divisors is an integer number (1444240980).

Almost surely, 2^23531324211 is an apocalyptic number.

23531324211 is a deficient number, since it is larger than the sum of its proper divisors (11130459309).

23531324211 is a wasteful number, since it uses less digits than its factorization.

23531324211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214715 (or 214712 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

Adding to 23531324211 its reverse (11242313532), we get a palindrome (34773637743).

The spelling of 23531324211 in words is "twenty-three billion, five hundred thirty-one million, three hundred twenty-four thousand, two hundred eleven".