20912018300 has 36 divisors (see below), whose sum is σ = 45392365536. Its totient is φ = 8362358400.

The previous prime is 20912018287. The next prime is 20912018321. The reversal of 20912018300 is 381021902.

It is a self number, because there is not a number n which added to its sum of digits gives 20912018300.

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 11 ways as a sum of consecutive naturals, for example, 334304 + ... + 391896.

Almost surely, 2^20912018300 is an apocalyptic number.

20912018300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20912018300 is an abundant number, since it is smaller than the sum of its proper divisors (24480347236).

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

20912018300 is a wasteful number, since it uses less digits than its factorization.

20912018300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61238 (or 61231 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 20912018300 in words is "twenty billion, nine hundred twelve million, eighteen thousand, three hundred".