23201312232 has 96 divisors (see below), whose sum is σ = 67510307520. Its totient is φ = 6625301760.

The previous prime is 23201312231. The next prime is 23201312293. The reversal of 23201312232 is 23221310232.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 23201312199 and 23201312208.

It is not an unprimeable number, because it can be changed into a prime (23201312231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2713468 + ... + 2722004.

It is an arithmetic number, because the mean of its divisors is an integer number (703232370).

Almost surely, 2^23201312232 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 23201312232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33755153760).

23201312232 is an abundant number, since it is smaller than the sum of its proper divisors (44308995288).

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

23201312232 is a wasteful number, since it uses less digits than its factorization.

23201312232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10871 (or 10860 counting only the distinct ones).

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

Adding to 23201312232 its reverse (23221310232), we get a palindrome (46422622464).

The spelling of 23201312232 in words is "twenty-three billion, two hundred one million, three hundred twelve thousand, two hundred thirty-two".