20121020300 has 36 divisors (see below), whose sum is σ = 43668793560. Its totient is φ = 8047269120.

The previous prime is 20121020281. The next prime is 20121020317. The reversal of 20121020300 is 302012102.

It is a happy 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 11 ways as a sum of consecutive naturals, for example, 1293167 + ... + 1308633.

Almost surely, 2^20121020300 is an apocalyptic number.

20121020300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20121020300 is an abundant number, since it is smaller than the sum of its proper divisors (23547773260).

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

20121020300 is a wasteful number, since it uses less digits than its factorization.

20121020300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28490 (or 28483 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20121020300 its reverse (302012102), we get a palindrome (20423032402).

The spelling of 20121020300 in words is "twenty billion, one hundred twenty-one million, twenty thousand, three hundred".