20012012300 has 144 divisors (see below), whose sum is σ = 50290114560. Its totient is φ = 6770615040.

The previous prime is 20012012263. The next prime is 20012012323. The reversal of 20012012300 is 321021002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20357609 + ... + 20358591.

Almost surely, 2^20012012300 is an apocalyptic number.

20012012300 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 20012012300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25145057280).

20012012300 is an abundant number, since it is smaller than the sum of its proper divisors (30278102260).

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

20012012300 is a wasteful number, since it uses less digits than its factorization.

20012012300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360 (or 1353 counting only the distinct ones).

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

Adding to 20012012300 its reverse (321021002), we get a palindrome (20333033302).

The spelling of 20012012300 in words is "twenty billion, twelve million, twelve thousand, three hundred".