23128385352 has 128 divisors (see below), whose sum is σ = 63115251840. Its totient is φ = 7033098240.

The previous prime is 23128385251. The next prime is 23128385353. The reversal of 23128385352 is 25358382132.

It is not an unprimeable number, because it can be changed into a prime (23128385353) 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, 4178827 + ... + 4184357.

It is an arithmetic number, because the mean of its divisors is an integer number (493087905).

Almost surely, 2^23128385352 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 23128385352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31557625920).

23128385352 is an abundant number, since it is smaller than the sum of its proper divisors (39986866488).

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

23128385352 is a wasteful number, since it uses less digits than its factorization.

23128385352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5871 (or 5867 counting only the distinct ones).

The product of its digits is 345600, while the sum is 42.

The spelling of 23128385352 in words is "twenty-three billion, one hundred twenty-eight million, three hundred eighty-five thousand, three hundred fifty-two".