23021332111 has 4 divisors (see below), whose sum is σ = 23049305392. Its totient is φ = 22993358832.

The previous prime is 23021332099. The next prime is 23021332133. The reversal of 23021332111 is 11123312032.

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 23021332111 - 2¹⁷ = 23021201039 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 (23021332141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13985406 + ... + 13987051.

It is an arithmetic number, because the mean of its divisors is an integer number (5762326348).

Almost surely, 2^23021332111 is an apocalyptic number.

23021332111 is a deficient number, since it is larger than the sum of its proper divisors (27973281).

23021332111 is an equidigital number, since it uses as much as digits as its factorization.

23021332111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27973280.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23021332111 its reverse (11123312032), we get a palindrome (34144644143).

The spelling of 23021332111 in words is "twenty-three billion, twenty-one million, three hundred thirty-two thousand, one hundred eleven".