20112243300 has 90 divisors (see below), whose sum is σ = 65195973458. Its totient is φ = 5363262720.

The previous prime is 20112243293. The next prime is 20112243313. The reversal of 20112243300 is 334221102.

20112243300 is a `hidden beast` number, since 201 + 122 + 43 + 300 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 49787136 + 20062456164 = 7056^2 + 141642^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1233397 + ... + 1249596.

Almost surely, 2^20112243300 is an apocalyptic number.

20112243300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112243300 is an abundant number, since it is smaller than the sum of its proper divisors (45083730158).

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

20112243300 is a wasteful number, since it uses less digits than its factorization.

20112243300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483019 (or 2483003 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20112243300 its reverse (334221102), we get a palindrome (20446464402).

The spelling of 20112243300 in words is "twenty billion, one hundred twelve million, two hundred forty-three thousand, three hundred".