20112325115520 has 256 divisors, whose sum is σ = 69942585386880. Its totient is φ = 4875258839040.

The previous prime is 20112325115461. The next prime is 20112325115549. The reversal of 20112325115520 is 2551152321102.

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

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 262124202 + ... + 262200918.

Almost surely, 2^{20112325115520} is an apocalyptic number.

20112325115520 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 20112325115520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34971292693440).

20112325115520 is an abundant number, since it is smaller than the sum of its proper divisors (49830260271360).

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

20112325115520 is a wasteful number, since it uses less digits than its factorization.

20112325115520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89163 (or 89151 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 20112325115520 its reverse (2551152321102), we get a palindrome (22663477436622).

The spelling of 20112325115520 in words is "twenty trillion, one hundred twelve billion, three hundred twenty-five million, one hundred fifteen thousand, five hundred twenty".