23021232211 has 4 divisors (see below), whose sum is σ = 23046013800. Its totient is φ = 22996450624.

The previous prime is 23021232209. The next prime is 23021232253. The reversal of 23021232211 is 11223212032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23021232211 - 2¹ = 23021232209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23021232281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12389401 + ... + 12391258.

It is an arithmetic number, because the mean of its divisors is an integer number (5761503450).

Almost surely, 2^23021232211 is an apocalyptic number.

23021232211 is a deficient number, since it is larger than the sum of its proper divisors (24781589).

23021232211 is an equidigital number, since it uses as much as digits as its factorization.

23021232211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24781588.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 23021232211 its reverse (11223212032), we get a palindrome (34244444243).

The spelling of 23021232211 in words is "twenty-three billion, twenty-one million, two hundred thirty-two thousand, two hundred eleven".