20303200120 has 64 divisors (see below), whose sum is σ = 54956044800. Its totient is φ = 6594721920.

The previous prime is 20303200111. The next prime is 20303200193. The reversal of 20303200120 is 2100230302.

It is a happy number.

It is a super-2 number, since 2×20303200120² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20303200120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1902876 + ... + 1913515.

It is an arithmetic number, because the mean of its divisors is an integer number (858688200).

Almost surely, 2^20303200120 is an apocalyptic number.

20303200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20303200120 is an abundant number, since it is smaller than the sum of its proper divisors (34652844680).

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

20303200120 is a wasteful number, since it uses less digits than its factorization.

20303200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3816428 (or 3816424 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20303200120 its reverse (2100230302), we get a palindrome (22403430422).

The spelling of 20303200120 in words is "twenty billion, three hundred three million, two hundred thousand, one hundred twenty".