20012121030300 has 288 divisors, whose sum is σ = 68317440737280. Its totient is φ = 4426035091200.

The previous prime is 20012121030299. The next prime is 20012121030367. The reversal of 20012121030300 is 303012121002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20012121030300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 606650407 + ... + 606683393.

Almost surely, 2^{20012121030300} is an apocalyptic number.

20012121030300 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 20012121030300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34158720368640).

20012121030300 is an abundant number, since it is smaller than the sum of its proper divisors (48305319706980).

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

20012121030300 is a wasteful number, since it uses less digits than its factorization.

20012121030300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42361 (or 42354 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20012121030300 its reverse (303012121002), we get a palindrome (20315133151302).

The spelling of 20012121030300 in words is "twenty trillion, twelve billion, one hundred twenty-one million, thirty thousand, three hundred".