23520132320520 has 256 divisors, whose sum is σ = 81617737881600. Its totient is φ = 5362323240960.

The previous prime is 23520132320483. The next prime is 23520132320527. The reversal of 23520132320520 is 2502323102532.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (23520132320527) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13317 + ... + 6858603.

It is an arithmetic number, because the mean of its divisors is an integer number (318819288600).

Almost surely, 2^{23520132320520} is an apocalyptic number.

23520132320520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23520132320520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40808868940800).

23520132320520 is an abundant number, since it is smaller than the sum of its proper divisors (58097605561080).

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

23520132320520 is a wasteful number, since it uses less digits than its factorization.

23520132320520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6845468 (or 6845464 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The spelling of 23520132320520 in words is "twenty-three trillion, five hundred twenty billion, one hundred thirty-two million, three hundred twenty thousand, five hundred twenty".