21152301300 has 432 divisors, whose sum is σ = 76283450880. Its totient is φ = 4862592000.

The previous prime is 21152301293. The next prime is 21152301301. The reversal of 21152301300 is 310325112.

21152301300 is a `hidden beast` number, since 2 + 11 + 52 + 301 + 300 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21152301301) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 10517295 + ... + 10519305.

Almost surely, 2^21152301300 is an apocalyptic number.

21152301300 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 21152301300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38141725440).

21152301300 is an abundant number, since it is smaller than the sum of its proper divisors (55131149580).

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

21152301300 is a wasteful number, since it uses less digits than its factorization.

21152301300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104 (or 2094 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 21152301300 its reverse (310325112), we get a palindrome (21462626412).

The spelling of 21152301300 in words is "twenty-one billion, one hundred fifty-two million, three hundred one thousand, three hundred".