23211001223 has 4 divisors (see below), whose sum is σ = 23310619488. Its totient is φ = 23111382960.

The previous prime is 23211001199. The next prime is 23211001271. The reversal of 23211001223 is 32210011232.

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 23211001223 - 2¹⁰ = 23211000199 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 (23211001273) 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, 49808783 + ... + 49809248.

It is an arithmetic number, because the mean of its divisors is an integer number (5827654872).

Almost surely, 2^23211001223 is an apocalyptic number.

23211001223 is a deficient number, since it is larger than the sum of its proper divisors (99618265).

23211001223 is an equidigital number, since it uses as much as digits as its factorization.

23211001223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99618264.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23211001223 its reverse (32210011232), we get a palindrome (55421012455).

The spelling of 23211001223 in words is "twenty-three billion, two hundred eleven million, one thousand, two hundred twenty-three".