23015324520 has 192 divisors, whose sum is σ = 77696236800. Its totient is φ = 5901504000.

The previous prime is 23015324477. The next prime is 23015324567. The reversal of 23015324520 is 2542351032.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2616049 + ... + 2624831.

It is an arithmetic number, because the mean of its divisors is an integer number (404667900).

Almost surely, 2^23015324520 is an apocalyptic number.

23015324520 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 23015324520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38848118400).

23015324520 is an abundant number, since it is smaller than the sum of its proper divisors (54680912280).

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

23015324520 is a wasteful number, since it uses less digits than its factorization.

23015324520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9080 (or 9073 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 23015324520 its reverse (2542351032), we get a palindrome (25557675552).

The spelling of 23015324520 in words is "twenty-three billion, fifteen million, three hundred twenty-four thousand, five hundred twenty".