21852312300 has 1152 divisors, whose sum is σ = 94571724800. Its totient is φ = 4199040000.

The previous prime is 21852312283. The next prime is 21852312323. The reversal of 21852312300 is 321325812.

21852312300 is a `hidden beast` number, since 2 + 18 + 523 + 123 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 144717225 + ... + 144717375.

Almost surely, 2^21852312300 is an apocalyptic number.

21852312300 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 21852312300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47285862400).

21852312300 is an abundant number, since it is smaller than the sum of its proper divisors (72719412500).

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

21852312300 is a wasteful number, since it uses less digits than its factorization.

21852312300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The spelling of 21852312300 in words is "twenty-one billion, eight hundred fifty-two million, three hundred twelve thousand, three hundred".