23203211223 has 4 divisors (see below), whose sum is σ = 30937614968. Its totient is φ = 15468807480.

The previous prime is 23203211189. The next prime is 23203211231. The reversal of 23203211223 is 32211230232.

It is a happy number.

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

It is not a de Polignac number, because 23203211223 - 2¹² = 23203207127 is a prime.

It is a super-2 number, since 2×23203211223² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23203211223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23203212223) 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, 3867201868 + ... + 3867201873.

It is an arithmetic number, because the mean of its divisors is an integer number (7734403742).

Almost surely, 2^23203211223 is an apocalyptic number.

23203211223 is a deficient number, since it is larger than the sum of its proper divisors (7734403745).

23203211223 is an equidigital number, since it uses as much as digits as its factorization.

23203211223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7734403744.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23203211223 its reverse (32211230232), we get a palindrome (55414441455).

The spelling of 23203211223 in words is "twenty-three billion, two hundred three million, two hundred eleven thousand, two hundred twenty-three".