21124123320300 has 1152 divisors, whose sum is σ = 84411470653440. Its totient is φ = 3936124108800.

The previous prime is 21124123320299. The next prime is 21124123320371. The reversal of 21124123320300 is 302332142112.

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, 10411099686 + ... + 10411101714.

Almost surely, 2^{21124123320300} is an apocalyptic number.

21124123320300 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 21124123320300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42205735326720).

21124123320300 is an abundant number, since it is smaller than the sum of its proper divisors (63287347333140).

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

21124123320300 is a wasteful number, since it uses less digits than its factorization.

21124123320300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3051 (or 3044 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21124123320300 its reverse (302332142112), we get a palindrome (21426455462412).

The spelling of 21124123320300 in words is "twenty-one trillion, one hundred twenty-four billion, one hundred twenty-three million, three hundred twenty thousand, three hundred".