23533504120 has 128 divisors (see below), whose sum is σ = 63769420800. Its totient is φ = 7635603456.

The previous prime is 23533504117. The next prime is 23533504129. The reversal of 23533504120 is 2140533532.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23533504129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6504552 + ... + 6508168.

It is an arithmetic number, because the mean of its divisors is an integer number (498198600).

Almost surely, 2^23533504120 is an apocalyptic number.

23533504120 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 23533504120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31884710400).

23533504120 is an abundant number, since it is smaller than the sum of its proper divisors (40235916680).

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

23533504120 is a wasteful number, since it uses less digits than its factorization.

23533504120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4877 (or 4873 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The spelling of 23533504120 in words is "twenty-three billion, five hundred thirty-three million, five hundred four thousand, one hundred twenty".