20201323120 has 160 divisors (see below), whose sum is σ = 52515013824. Its totient is φ = 7164518400.

The previous prime is 20201323117. The next prime is 20201323171. The reversal of 20201323120 is 2132310202.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 20201323094 and 20201323103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8440644 + ... + 8443036.

Almost surely, 2^20201323120 is an apocalyptic number.

20201323120 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 20201323120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26257506912).

20201323120 is an abundant number, since it is smaller than the sum of its proper divisors (32313690704).

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

20201323120 is a wasteful number, since it uses less digits than its factorization.

20201323120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651 (or 2645 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20201323120 its reverse (2132310202), we get a palindrome (22333633322).

The spelling of 20201323120 in words is "twenty billion, two hundred one million, three hundred twenty-three thousand, one hundred twenty".