23201213312 has 64 divisors (see below), whose sum is σ = 46726587600. Its totient is φ = 11474141184.

The previous prime is 23201213281. The next prime is 23201213317. The reversal of 23201213312 is 21331210232.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23201213317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10979168 + ... + 10981280.

Almost surely, 2^23201213312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23201213312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23363293800).

23201213312 is an abundant number, since it is smaller than the sum of its proper divisors (23525374288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23201213312 is a wasteful number, since it uses less digits than its factorization.

23201213312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3023 (or 3011 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23201213312 its reverse (21331210232), we get a palindrome (44532423544).

The spelling of 23201213312 in words is "twenty-three billion, two hundred one million, two hundred thirteen thousand, three hundred twelve".