23520253430520 has 384 divisors, whose sum is σ = 95317949975040. Its totient is φ = 4886550789120.

The previous prime is 23520253430501. The next prime is 23520253430521. The reversal of 23520253430520 is 2503435202532.

23520253430520 is a `hidden beast` number, since 2 + 3 + 52 + 0 + 2 + 53 + 4 + 30 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23520253430521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 183913719 + ... + 184041561.

It is an arithmetic number, because the mean of its divisors is an integer number (248223828060).

Almost surely, 2^{23520253430520} is an apocalyptic number.

23520253430520 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 23520253430520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47658974987520).

23520253430520 is an abundant number, since it is smaller than the sum of its proper divisors (71797696544520).

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

23520253430520 is a wasteful number, since it uses less digits than its factorization.

23520253430520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134515 (or 134508 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 36.

The spelling of 23520253430520 in words is "twenty-three trillion, five hundred twenty billion, two hundred fifty-three million, four hundred thirty thousand, five hundred twenty".