23201213223 has 32 divisors (see below), whose sum is σ = 33616465920. Its totient is φ = 14190865920.

The previous prime is 23201213213. The next prime is 23201213227. The reversal of 23201213223 is 32231210232.

It is a happy number.

It is not a de Polignac number, because 23201213223 - 2¹³ = 23201205031 is a prime.

It is a super-2 number, since 2×23201213223² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23201213223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23201213227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193713 + ... + 289701.

It is an arithmetic number, because the mean of its divisors is an integer number (1050514560).

Almost surely, 2^23201213223 is an apocalyptic number.

23201213223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

23201213223 is a deficient number, since it is larger than the sum of its proper divisors (10415252697).

23201213223 is a wasteful number, since it uses less digits than its factorization.

23201213223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96159.

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

Adding to 23201213223 its reverse (32231210232), we get a palindrome (55432423455).

The spelling of 23201213223 in words is "twenty-three billion, two hundred one million, two hundred thirteen thousand, two hundred twenty-three".