20324145206120 has 128 divisors (see below), whose sum is σ = 52644709416960. Its totient is φ = 6917326214400.

The previous prime is 20324145206089. The next prime is 20324145206137. The reversal of 20324145206120 is 2160254142302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61013057 + ... + 61345263.

It is an arithmetic number, because the mean of its divisors is an integer number (411286792320).

Almost surely, 2^{20324145206120} is an apocalyptic number.

20324145206120 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 20324145206120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26322354708480).

20324145206120 is an abundant number, since it is smaller than the sum of its proper divisors (32320564210840).

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

20324145206120 is a wasteful number, since it uses less digits than its factorization.

20324145206120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333823 (or 333819 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 20324145206120 its reverse (2160254142302), we get a palindrome (22484399348422).

The spelling of 20324145206120 in words is "twenty trillion, three hundred twenty-four billion, one hundred forty-five million, two hundred six thousand, one hundred twenty".