20203321120 has 48 divisors (see below), whose sum is σ = 47754637560. Its totient is φ = 8077215744.

The previous prime is 20203321109. The next prime is 20203321121. The reversal of 20203321120 is 2112330202.

It can be written as a sum of positive squares in 4 ways, for example, as 19632493456 + 570827664 = 140116^2 + 23892^2 .

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 = 20203321094 and 20203321103.

It is not an unprimeable number, because it can be changed into a prime (20203321121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293524 + ... + 355756.

Almost surely, 2^20203321120 is an apocalyptic number.

20203321120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20203321120 is an abundant number, since it is smaller than the sum of its proper divisors (27551316440).

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

20203321120 is a wasteful number, since it uses less digits than its factorization.

20203321120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64277 (or 64269 counting only the distinct ones).

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

Adding to 20203321120 its reverse (2112330202), we get a palindrome (22315651322).

The spelling of 20203321120 in words is "twenty billion, two hundred three million, three hundred twenty-one thousand, one hundred twenty".